JMS, Vol. 51, No. 4, 2015
GEOMECHANICS
NONLINEAR DEFORMATION–WAVE PROCESSES IN VARIOUS RANK COAL SPECIMENS LOADED TO FAILURE UNDER VARIED TEMPERATURE
V. N. Oparin, T. A. Kiryaeva, O. M. Usol’tseva, P. A. Tsoi,
and V. N. Semenov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 4, Novosibirsk, 630091 Russia
Novosibirsk State University,
ul. Pirigova 2, Novosibirsk, 630090 Russia
e-mail: coalmetan@mail.ru
Aiming to build up a phenomenological basis for the theory of interaction between geomechanical, thermal and physicochemical processes in methane-bearing coal in Kuzbass, the authors performed a set of laboratory bench tests on uniaxial stiff loading of various rank coal specimens. The pressure versus temperature dependences are obtained for coal specimens with granite gaskets using high-precision scanning computerized thermal imager. It is shown that temperature changed in coal specimens subjected to loading to failure is connected with volatile content and internal energy relaxation of methane in Kuzbass coal. Using jointly thermal imaging and laser measuring equipment ALMEC-tv for high-precision and detail control of deformation–wave processes in loaded coal specimens by speckle-method, it has for the first time been proved that nonlinear pendulum-type movements of structural elements are possible in coal specimens with varied temperature field, which is of fundamental importance for actualization of previously ignored mass and gas exchange processes in high-stress coal beds of different grade composition under mining,
Connections, temperature field, deformation–wave processes, ranks, specimens, Kuzbass coal deposits, stress–strains state, volatile yield, limit internal energy
DOI: 10.1134/S1062739115040003 REFERENCES
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STRESS REDISTRIBUTION IN DEEP OPEN PIT MINE ZHELEZNY
AT KOVDOR IRON ORE DEPOSIT
A. A. Kozyrev, I. E. Semenova, V. V. Rybin, and I. M. Avetisyan
Mining Institute, Kola Science Center, Russian Academy of Sciences,
ul. Fersmana 24, Apatity, 184209 Russia
e-mail: innas@goi.kolasc.net.ru
The full-scale measurements of initial stresses and numerical modeling of stresses in rock mass enclosing deep open pit mine Zhelezny under planning at Kovdor Mining-and-Processing Integrated Work are presented in the article. The authors have located hazardous areas in pit wall rock mass and validated stability conditions for pit walls with steeply sloped benches.
Geomechanics, stress state, pit wall stability, mathematical modeling, open pit mineral mining method
DOI: 10.1134/S1062739115040015 REFERENCES
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6. Kozyrev, A.A., Kaspar’yan, E.V., and Rybin, V.V., Basic Methodical Approach to Use of New Design Pitwalls, Problems and Trends of Rational and Safe Exploitation of GeoResources: Proc. All-Russian Conf. with Int. Participation Devoted to the 50th Anniversary of the Mining Institute, Kola Science Center, RAS, Apatity–Saint-Petersburg, 2011.
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DETERMINING KINETIC PARAMETERS OF. A. BLOCK COAL BED GAS
BY SOLVING INVERSE PROBLEM BASED ON DATA OF BOREHOLE GAS MEASUREMENTS
L. A. Nazarova, L. A. Nazarov, A. L. Karchevsky, and M. Vandamme
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: larisa@misd.nsc.ru
Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Koptyuga 4, Novosibirsk, 630090 Russia
Universite Paris-Est, Laboratoire Navier (UMR 8205), CNRS, ENPC, IFSTTAR,
F-77455 Marne-la-Vallee, France
In the framework of the developed and implemented nonlinear geomechanical model of a coal bed having block structure, describing gas inflow, the authors propose the method for quantitative estimate of gas content as well as diffusion and mass exchange coefficients based on solution of inverse problems using pressure measurements taken in shut-in borehole in the “pressure drop” mode. Besides the main function, the set problem had an auxiliary objective function with the less number of arguments. Numerical experiments with synthetic input data yield that the auxiliary objective function has a number of local minimums. The authors also put forward a technique of finding global minimum that provides the set problem solution.
Coal and rock mass, degassing, gas content, diffusion coefficient, inverse problem
DOI: 10.1134/S1062739115040027 REFERENCES
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CALCULATING STRESSES IN SUPPORT AND SIDEWALL ROCKS
IN STAGEWISE FACE DRIVAGE IN LONG EXCAVATIONS
V. M. Seryakov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: a.i.chanyshev@gmal.com
The issues of calculation of stresses and strains in the elements of support and in rock mass in stagewise drivage of a production face are under discussion. In order to take into account the sequence of mining and support installation, it is required to solve problems on extra stresses due to small cross-section drivage. Geomechanical estimation of support and rocks used the method based on single formation of stiffness matrix to describe rock mass prior to mining start. Sequential drivage of excavations and change of mechanical properties in the calculation system are modeled using initial stress procedure. The author calculates two scenarios of mining with stagewise face drivage under conditions of elastic deformation of rocks and support and analyzes behavior of stress redistribution in elements of support being installed in stages. It is shown that mining sequence considerably influences stresses in the support elements upon the drivage completion. The scenario of mining with initial installation of sideways support elements results in increased tensile stresses in the support as against the scenario when the underroof space is first mined out and supported.
Rocks, stresses, strains, cross-section, support elements, face drivage stages, stress state calculation, stiffness matrix, tension zones
DOI: 10.1134/S1062739115040039 REFERENCES
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4. Protosenya, A.G., Dolgy, E.I., and Ogorodnikov, Yu.N., Shakhtnoe i podzemnoe stroitel’stvo v primerakh i zadachakh (Mine and Underground Construction: Examples and Problems), Saint-Petersburg: Gorn. Inst. Plekhanova, 2003.
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8. Kurlenya, M.V., Seryakov, V.M., and Eremenko, A.A., Tekhnogennye geomekhanicheskie polya napryazhenii (Mining-Induced Geomechanical Fields of Stresses), Novosibirsk: Nauka, 2005.
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10. Seryakov, V.M., Mathematical Modeling of Stress–Strain State in Rock Mass during Mining with Backfill, J. Min. Sci., 2014, vol. 50, no. 5, pp. 847–854.
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12. Turchaninov, I.A., Iofis, M.A., and Kaspar’yan, E. V. Osnovy mekhaniki gornykh porod (Basics of Rock Mechanics), Leningrad: Nedra, 1989.
DETERMINATION OF ULTIMATE PITWALL PARAMETERS
IN AXISYMMETRIC RIGID-PLASTIC MODEL OF ROCKS
A. I. Chanyshev and G. M. Podyminogin
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: a.i.chanysgev@gmail.com
The authors describe mathematical model for estimation of cone-type pitwall stability in the framework of rigid-plastic model of rock mass deformation, with finding maximum pit depth allowable in terms of safety.
Stability, pitwall, open pit, rock mass, rigid-plastic model, pit depth
DOI: 10.1134/S1062739115040040 REFERENCES
1. Drucker, D.C. and Prager, W., Soil Mechanics and Plastic Analysis for Limit Design, Quarterly of Applied Mathematics, 1952, vol. 10, no. 2.
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7. Stavrogin, A.N. and Protosenya, A.G., Plastichnost’ gornykh porod (Plasticity of Rocks), Moscow:
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8. Kachanov, L.M., Osnovy teorii plastichnosti (Principles of the Plasticity Theory), Moscow: Nauka, 1969.
9. Sokolovsky, V.V., Statika sypuchei sredy (Statics of Granular Medium), Moscow: GIFML, 1960.
10. Fisenko, G.L., Ustoichivost’ bortov kar’erov i otvalov (Slope Stability of Pitwalls and Dumps), Moscow: Nedra, 1965.
11. Galust’yan, E.L., Geomekhanika otkrytykh gornykh rabot (Open Pit Mining Geomechanics), Moscow: Nedra, 1992.
12. Demin, A.M., Ustoichivost’ otkrytykh gornykh vyrabotok i otvalov (Stability of Open Pit Mines and Dumps), Moscow: Nedra, 1973.
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NUMERICAL MODELING OF WAVEFIELDS OF MICROSEISMIC EVENTS
IN UNDERGROUND MINING
M. V. Kurlenya, A. S. Serdyukov, A. V. Azarov, and A. A. Nikitin
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: kurlenya@misd.nsc.ru
Trofimuk Institute of Petroleum-Gas Geology and Geophysics,
Siberian Branch, Russian Academy of Sciences,
pr. Akademika Koptyuga 3, Novosibirsk, 630090 Russia
The article describes modeling procedure and calculation of wave fields in microseismicity monitoring in anisotropic medium. The research findings are intended for testing of processing algorithms for data of seismic observations in underground mining.
Microseismic monitoring, geodynamic processes, mathematical modeling, numerical methods, anisotropic medium, seismic moment trend
DOI: 10.1134/S1062739115040052 REFERENCES
1. Malovichko, D.A., Analysis of Mechanisms of Events in the Upper Kama Potash Mines, Cand. Phys.-Math. Sci. Dissertation, Moscow, 2004.
2. Kurlenya, M.V., Serdyukov, A.S., Duchkov, A.A., and Serdyukov, S.V., Wave Tomography of Methane Pockets in Coal Bed, J. Min. Sci., 2014, vol. 5, no. 4, pp. 617–622.
3. Metodicheskie ukazaniya po sozdaniyu sistem kontrolya sostoyaniya gornogo massiva i prognoza gornykh udarov kak elementov mnogofunktsional’noi sistemy bezopasnosti ugol’nykh shakht (Instructional Guidelines on Rock Mass Control and Rockburst Prediction Systems as Components of Multifunctional Coal Mine Safety Systems), Saint-Patersburg: VNIMI, 2012.
4. Serdyukov, S.V., Azarov, A.V., Dergach, P.A., and Duchkov, A.A., Equipment for Microseismic Monitoring of Geodynamic Processes in Undeground Hard Mineral Mining, J. Min. Sci., 2015, vol., 51, no. 3, pp. 634–640.
5. Yaskevich, S.V., Grechka, V.Yu., and Duchkov, A.A., Processing Microseismic Monitoring Data, Considering Seismic Anisotropy of Rocks, J. Min. Sci., 2015, vol. 51, no. 3, pp. 477–486.
6. Loginov, G.N. and Yaskevich, S.V., Methods of Assessing Precision of Location of Hypocenters in Microseismic Monitoring of Hydraulic Fracturing, Geosciences. State-of-the-Art: Proc. 1st Al-Russia Youth Conf., Novosibirsk, 2015.
7. Loginov, G.N. and Yaskevich, S.V., Polarization Analysis Accuracy in Microseismicty Monitoring, Proc. Int. Conf. Mathematical Modeling Analysis and Identification Methods, devoted to the 85th Anniversary of A. S. Alekseev, Novosibirsk, 2013.
8. Bortnikov, P.B. and Mainagashev, S.M., Inverse Problems in Microseismic Monitoring, Informatsionnye tekhnologii i obratnye zadachi ratsional’nogo prirodopol’zovaniya (Information Technologies and Inverse Problems in Rational Nature Management), Khanty-Mansiysk: YuNIIT, 2005.
9. Chebotareva, I.Ya., Seismic Emission Tomography Algorithm for Weak Space Correlation of Sigbak, Vestn. MGOU, Series: Natural Sciences, 2011, vol. 1.
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11. Witten, B. and Artman, B., Signal-to-Noise Estimates of Time-Reverse Images, Geophysics, 2011,
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12. Grechka, V. and Yaskevich, S., Azimuthal Anisotropy in Microseismic Monitoring: A Bakken Case Study, Geophysics, 2014, vol. 79, no. 1.
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15. Kurlenya, M.V., Serdyukov, A.S., Serdyukov, S.V., and Cheverda, V.A., Seismic Approach to Location of Methane Accumulation Zones in a Coal Seam, J. Min. Sci., 2010, vol. 46, no. 6, pp. 621–629.
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19. Bohlen, T., Parallel 3-D Viscoelastic Finite Difference Seismic Modeling, Computers & Geosciences, 2002, vol. 28, no. 8.
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ANALYSIS OF TIME-TO-TIME VARIATION OF LOAD
ON INTERCHAMBER PILLARS IN MINES OF THE UPPER KAMA POTASH SALT DEPOSIT
A. A. Baryakh, S. Yu. Lobanov, and I. S. Lomakin
Mining Institute, Ural Branch, Russian Academy of Sciences,
ul. Sibirskaya 78a, Perm, 614007 Russia
e-mail: bar@mi-perm.ru
The procedure to estimate growth in load exerted on interchamber pillars with time is based on mathematical modeling of stresses and strains in structural elements of room-and-pillar mining method and on roof rock failure criteria. The calculation results illustrate a real time scale of variation in strength of rocks and the associated partial collapse of a parting and failure of edges of interchamber pillars when their height is increased.
Pillars, roof, mathematical modeling, loading, failure, long-term strength
DOI: 10.1134/S1062739115040064 REFERENCES
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3. Yudin, R.E., Marakov, V.E., Sivkov, E.S., et al., Stress Control in the Pillars and Roofs of Stopes in Mines of the Upper Kama Potash Salt Deposit, Kontrol’, prognozirovanie i upravlenie sostoyaniem porod v kaliynykh rudnikakh (Rock Mass Monitoring, Prediction and Control in Potassium Mines), Leningrad: VNIIG, 1985.
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7. Ukazaniya po zashchite rudnikov ot zatopleniya i okhrane podrabatyvaemykh ob’ektov v usloviyakh VKMKS (Guidelines on Flooding Protection and Safety of Undermined Objects at UKPSD), Saint-Petersburg, 2008.
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12. Baryakh, A.A., Shumikhina, A.Yu., Toksarov, V.N., Lobanov, S.Yu., and Evseev, A.V., Criteria and Features of Failure in Stratified Roof of Stopes in Mining at Upper Kama Potash Salt Deposit, Gorny Zh., 2011, no. 11.
13. Baryakh, A.A., Asanov, V.A., and Pan’kov, I.L., Fiziko-mekhanicheskie svoistva solyanykh porod Verkhnekamskogo kaliynogo mestorozhdeniya: ucheb. posob. (Physico-Mechanical Properties of Salt Rocks of Upper Kama Potash Salt Deposit: Educational Aid), Perm: Perm. Gost. Tekh. Univer., 2008.
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18. Baryakh, A.A. and Fedoseev, A.K., Sinkhole Formation Mechanism, J. Min. Sci., 2011, vol. 47,
no. 4, pp. 404–412.
19. Baryakh, A.A. and Samodelkina, N.A., To the Calculation of Pillar Stability under Condition of Pillar Mining, J. Min. Sci., 2007, vol. 43, no. 1, pp. 8–16.
20. Lobanov, S.Yu., Shumikhina, A.Yu., Toksarov, V.N., Lomakin, I.S., and Evseev, A.V., Stability of Load-Bearing Elements in Room-and-Pillar Mining System, Gorny Zh., 2013, no. 6.
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22. Baryakh, A.A. and Samodelkina, N.A., Rheological Analysis of Geomechanical Processes, J. Min. Sci., 2005, vol. 41, no. 6, pp. 522–530.
23. Lobanov, S.Yu., Estimate of Time Variation in Load-Bearing Capacity of Interchamber Pillars, Strategiya i protsessy osvoeniya georesursov: sb. nauch. tr. (Strategy and Processes of Development of Georesources: Collection of Scientific Papers), Perm: GI UrO RAN, 2013, issue 11.
24. Shulakov, D.Yu., Analysis of Correlation between Microseismic Activity and Ground Surface Subsidence Depending on Mining Factors, Strategy and Processes of Development of Georesources: Proc. Sci. Session on 2013 R&D Results, Perm: GI UrO RAN, 2004.
25. Baryakh, A.A., Telegina, E.A., Samodelkina, N.A., and Devyatkov, S.Yu., Prediction of the Intensive Surface Subsidences in Mining Potash Series, J. Min. Sci., 2005, vol. 41, no. 4, pp. 312–319.
EFFECT OF DEFORMATION PROPERTIES OF DISCONTINUITIES
ON SOURCES OF MINING-INDUCED SEISMICITY IN ROCKS.
PART I: IN SITU OBSERVATIONS
A. N. Besedina, S. B. Kishkina, and G. G. Kocharyan
Institute of Geosphere Dynamics, Russian Academy of Sciences,
Leninskii pr. 38, Bld. 1, Moscow, 119334 Russia
Moscow Institute of Physics and Technology,
Institutskii pereulok 9, Dolgoprudny, 141700 Russia
e-mail: geospheres@idg.chph.ras.ru
The authors analyze mine logs of seismic events in Poland, Finland, Canada, Russia and South Africa. For the analyzed events, induced seismic energy varies by 2–3 orders of magnitude at the same value of seismic moment. The upper and lower limits of the range correspond to “stiff” and “soft” sources, respectively. The most probable cause of the wide spread of the reduced energy values seems to be fluctuating properties of discontinuities due to the change in the composition of filler and water content of joints.
Induced seismicity, seismic energy, seismic moment, tectonic shocks, stiffness of faults
DOI: 10.1134/S1062739115040078 REFERENCES
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2. Oparin, V.N., Emanov, A.F., Vostrikov, V.I., and Tsibizov, L.V., Kinetics of Seismic Emission in Coal Mines in Kuzbass, J. Min. Sci., 2013, vol. 49, no. 4, pp. 521–536.
3. Oparin, V.N. et al., Destruktsiya zemnoi kory i protsessy samoorganizatsii v oblastyakh sil’nogo tekhnogennogo vozdeistviya (Destruction and Self-Organization of the Earth’s Crust in the Areas of Heavy Industrial Impact), N. N. Mel’nikov (Ed.), Novosibirsk: SO RAN, 2012.
4. Nazarov, L.A., Nazarova, L.A., Yaroslavtsev, A.F., Miroshnichenko, N.A., and Vasil’eva, E.V.,
Evolution of Stress Fields and Induced Seismicity in Operating Mines, J, Min. Sci., 2011, vol. 47,
no. 6, pp. 707–713.
5. Usol’tseva, O.M., Nazarova, l.A., Tsoi, P.A., Nazarov, L.A., and Semenov, V.N., Genesis and Evolution of Discontinuities in Geomaterials: Theory and a Laboratory Experiment, J. Min. Sci., 2013, vol. 49,
no. 1, pp. 1–7.
6. Nazarova, L.A., Nazarov, L.A., and Kozlova, M.P., Dilatancy and the Formation and Evolution
of Disintegration Zones in the Vicinity of Heterogeneities in a Rock Mass, J. Min. Sci., 2009, vol. 45, no. 5, pp. 411–419.
7. Emanov, A.F., Emanov, A.A., Fateev, A.V., Leskova, E.V., Shevkunova, E.V., and Podkorytova, E.G., Mining-Induced Seismicity at Open Mines in Kuzbass (Bachatsky Earthquake on June 18, 2013), J. Min. Sci., 2014, vol. 50, no. 2, 224–228.
8. Adushkin, V.V. and Turuntaev, S.B., Tekhnogennaya seismichnost’–indutsirovannaya i triggernaya (Induced and Trigger Seismicity), Moscow: IDG RAN, 2015.
9. Snelling, P., Godin, L., and McKinnon, S., The Role of Geologic Structure and Stress in Triggering Remote Seismicity in Creighton Mine, Sudbury, Canada, International Journal of Rock Mechanics & Mining Sciences, 2013, vol. 58.
10. Kocharyan, G.G., Kishkina, S.B., Novikov, V.À., and Ostapchuk, À.À., Slow Slip Events: Parameters, Conditions of Occurrence, and Future Research Prospects, Geodyn. & Tectonophys., 2014, vol. 5 (4).
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AGN, 1997.
12. Malovichko, A.A. and Malovichko, D.A., Assessment of Force and Deformation Characteristics of Seismic Sources, Metody i sistemy seismodeformatsionnogo monitoringa tekhnogennykh zemletryasenii i gornykh udarov (Methods and Systems of Seismic Deformation Monitoring of Induced Earthquakes and Rock Bursts), vol. 2, N. N. Mel’nikov (Ed.), Novosibirsk, 2010.
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ASSESSMENT OF DEFORMATION PROPERTIES OF ROCKS
BY PRESSUREMETER TESTING IN HYDROFRACTURED INTERVAL
M. V. Kurlenya, S. V. Serdyukov, and A. V. Patutin
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: ss3032@yandex.ru
The authors propose the method to estimate deformation properties of rocks by the data on pressuremeter test in hydrofractured interval, allowing in situ values of Young’s modulus and Poisson’s ratio of rocks. It is shown that combination of pressuremeter tests and hydraulic fracturing expands the scope of deformation measurements and improves efficiency of stress assessment in rocks using hydrofracturing method.
Rock mass, pressuremeter test, hydrofracturing, crack, Young’s modulus, Poisson’s ratio, stress state
DOI: 10.1134/S106273911504008X
REFERENCES
1. Clarke, Â.G., Pressuremeter Testing in Ground Investigation. Part I: In-Site Operations, Proc. Instn. Civ. Engrs. Geotech. Engng., 1996, vol. 119.
2. Amadei, B., Valverde, M., Jernigan, R., Touseull, J., and Cappelle, J.F., The Directional Dilatometer: A New Option to Determine Rock Mass Deformability, The Pressuremeter and Its New Avenues: Proc. 4th Int. Symp., Sherbrooke, Quebec, 1995.
3. RF State Standard GOST 20276–2012, Moscow, 2012.
4. Shkuratnik, V.L. and Nikolenko, P.V., Metody opredeleniya napryazhenno-deformirovannogo sostoyaniya: nauch.-obraz. kurs (Methods to Determine Stress–Strain State: Education and Research Course), Moscow, 2012.
5. Zalesky, M., Buhler, Ch., Burger, U., and John, M., Dilatometer Tests in Deep Boreholes in Investigation for Brenner Base Tunnel, Proc. World Tunnelling Congress, Rotterdam: A. Balkema, 2006.
6. Vardanyan, G.S., Andreev, V.I., Atarov, N.M., and Gorshkov, A.A., Soprotivlenie materialov s osnovami teorii uprugosti i plastichnosti (Strength of Materials and Basics of the Theory of Elasticity and Plasticity), Moscow: ASV, 1995.
7. Bel’tyukov, N.L. and Evseev, A.V., Comparing Elastic Properties of Rocks, Vestn. PNIPU. Geolog. Neftegaz. Gorn. Delo, 2010, no. 5.
8. Gercek, H., Poisson’s Ratio Values for Rocks, International Journal of Rock Mechanics & Mining Sciences, 2007, vol. 44.
9. Lu, P., Li, G., Huang, Zh., Tian, Sh., and Shen, Zh., Simulation and Analysis of Coal Seam Conditions on the Stress Disturbance Effects of Pulsating Hydro-Fracturing, Journal of Natural Gas Science and Engineering, 2014, vol. 21.
10. Akbarzadeh, H. and Chalaturnyk, R.J., Structural Changes in Coal at Elevated Temperature Pertinent to Underground Coal Gasification: A Review, International Journal of Coal Geology, 2014, vol. 131.
11. Lu, P.H., In Situ Determination of Deformation Modulus and Poisson’s Ratio of a Rock Mass with Hydraulic Borehole Pressure Cells, Proc. 28th US Symp. Rock Mechanics, Tucson, 1987.
12. Method for Obtaining Poisson’s Ratio in Rock Masses by Boreholes Made In Situ. Available at: http://www.swisseen.ch/marketplace/index.php?file=bbs-show.php&bbsref=11%20ES%2024D4%203 MMD (last visited June 5, 2015).
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14. Pavlov, A., Martynyuk, P.A., and Serdyukov, S.V., The Hydraulic Fracture Opening Pressure Multiple Test for the Stress State Measurement in Permeable Rock, Rock Stress and Earthquakes: Proc. 5th Int. Symp., London: CRC Press/Balkema, 2010.
15. Martynyuk, P.A., Pavlov, V.A., and Serdyukov, S.V., Assessment of Stress State in Rocks by Deformation Characteristic of Borehole Zone with Hydrofracture, J. Min. Sci., 2011, vol. 47, no. 3, pp. 290–296.
16. Haimson, B.C., A Hybrid Method for Constraining the In Situ Stress Regime in Deep Vertical Holes, Rock Stress and Earthquakes: Proc. 5th Int. Symp., London: CRC Press/Balkema, 2010.
17. Haimson, B.C. and Fairhurst, C., Initiation and Extension of Hydraulic Fracture in Rocks, Soc. Petr. Engrs. J., Sept. 1967.
18. Serdyukov, S.V., Degtyareva, N.V., Patutin, A.V., and Rybalkin, L.A., Precision Dilatometer with Built-In System of Advance along the Borehole, J. Min. Sci., 2015, vol. , no. 4, pp. 860–864.
MONITORING LINEAR DEFORMATION OF BUILDINGS AND STRUCTURES
S. V. Usanov, V. I. Ruchkin, and O. D. Zheltysheva
Institute of Mining, Ural Branch, Russian Academy of Sciences,
ul. Mamina-Sibiryaka 58, Ekaterinburg, 620219 Russia
e-mail: usv@igduran.ru
In focus are special cases of distortion of buildings when heavy structural deformations were visually observed though instrumental monitoring showed low strain values. The experimental laser scanning of such deformations exhibited complex deformation patterns in horizontal planes of buildings. Aimed at determining causes of the nonlinear deformation of buildings and structures and preventing relevant accidents, the integrated monitoring technology is offered based on taking into account stress–strain state and block structure of rock mass under the buildings.
Deformations of buildings, instrumental monitoring, laser scanning, stress–strain state, rock mass
DOI: 10.1134/S1062739115040091 REFERENCES
1. Usanov, S.V., Konovalova, Yu.P., and Zheltysheva, O.D., Advanced Technologies of Movement Monitoring, Gorny Zh., 2012, no. 1.
2. Usanov, S.V. and Konovalova, Yu.P., Deformation during Subway Tunnel Construction in Ekaterinburg, GIAB, 2011, no. S11.
3. Konovalova, Yu.P., Analysis of Cyclic Short-Term Geodynamic Deformation of an Area in Selecting Nuclear Plant Construction Site, GIAB, 201, no. 7.
4. Usanov, S.V., Geodynamic Movement of Rocks under Action of a Large Mining-and-Processing Integrated Works, GIAB, 2011, no. S11.
5. Draskov, V.P., Operation Safety of Mine Structure at Sarany Chromite Deposit, GIAB, 2010, no. 6.
6. Instruktsia po nablyudeniyam za sdvizheniem gornykh porod i zemnoi poverkhnosti pri podzemnoi razrabotke rudnykh mestorozhdenii (Guidelines on Monitoring of Surface and Underground Movements in Underground Ore Mining), Moscow: Nedra, 1988.
7. Usanov, S.V. and Zheltysheva, O.D., Laser Scanning Deformation of a Building in the Mining Influence Zone, Proc. 2nd Sino-Russian Joint Scientific-Technical Forum on Deep-Level Rock Mechanics and Engineering, Novosibirsk: IGD SO RAN, 2012.
8. Gulyaev, A.N., Osipova, A.Yu., and Shchapov, V.A., Geophysical Research Findings for 9-Storey Repair Nonresidential Building Site, Proc. Conf. Mining Geomechanics, Ekaterinburg: IGD UrO RAN, 2012.
9. Mel’nik, V.V., Zamyatin, A.L., and Pustuev, A.L., Spectral Profile Shooting for Accident Forecasting and Risk Abatement in Subsoil Use, Gorny Zh., 2012, no. 1.
10. Tagil’tsev, S.N., Khaustova, A.Yu., Luk’yanov, A.E., and Dalatkazin, T.Sh., Effect of Tectonic Activity on Deformation of Buildings in Ekaterinburg, Proc. Int. Conf. Urgent Issues of Engineering Geology and Ecological Geology, Moscow: MGU, 201.
11. Usanov, S.V., Mel’nik, V.V., and Zamyatin, A.L., Monitoring Rock Mass Transformation under Induced Movements, J. Min. Sci., 2013, vol. 49, no. 6, pp. 913–918.
12. Balek, A.E. and Zamyatin, A.L., Self-Organization Processes in a Hierarchical Blocks Structure Geomedium under Industrial Impact, GIAB, 2006, no. 7.
13. Dalatkazin, T.Sh., Creation of Geodynamic Test Ground in the Ekaterinburg Region, GIAB, 2008, no. 1.
14. Ruchkin, V.I., Rock Mass Stress–Strain State Monitoring at Large Spacing, GIAB, 2008, no. 4.
15. Sashurin, A.D., Sdvizhenie gornykh porod na rudnikakh chernoi metallurgii (Rock Mass Movement in Iron Industry Mines), Ekaterinburg: IGD UrO RAN, 1999.
16. Panzhin, A.A., Analysis of Ground Surface Displacements in Mineral Mining Using Areal Instrumental Techniques, Izv. vuzov, Gorny Zh., 2009, no. 2.
MINERAL MINING TECHNOLOGY
SUBSTANTIATION OF EXTRACTION PANEL PARAMETERS IN ECOLOGICALLY BALANCED COAL MINING CYCLE
M. V. Ryl’nikova, V. A. Eremenko, A. P. Eruslanov, and S. A. Prokhvatilov
Institute of Integrated Mineral Development—IPKON,
Russian Academy of Sciences,
Kryukovskii tupik 4, Moscow, 111020 Russia
e-mail: eremenko@ngs.ru
Novokuznetsk Paramilitary Mine Rescue Team, Paramilitary Mine Rescue Unit,
ul. Gornospasatel’naya 5, Novokuznetsk, 654028 Russia
The article focuses on ecologically balanced and complete extraction of coal reserves, with minimized impact exerted on human environment by gas emissions. It is found that geometrical design of extraction panels should be based on modeling of oxygen distribution in mined-out stopes and then calibration of the model using in situ test data.
Ecologically balanced cycle, deposit, complete extraction, mine, coal seam, extraction panel, dimension, mined-out stope, monitoring system, oxygen, methane
DOI: 10.1134/S1062739115040127 REFERENCES
1. Trubetskoy, K.N., Kaplunov, D.R., Ryl’nikova, M.V., et al., Russia’s Mineral Mining and Processing Industry Sustainability Conditions, GIAB, 2015, no. 2.
2. Kaplunov, D.R., Ryl’nikova, M.V., Radchenko, D.N., Utilization of Renewable Energy Sources in Hard Mineral Mining, J. Min. Sci., 2015, vol. 51, no. 1, pp. 111–117.
3. Gorbatov, V.A., Igishev, V.G., Popov, V.B., et al., Zashchita ugol’nykh shakht ot samovozgoraniya uglei (Protection of Coal Mines from Spontaneous Coal Combustion), Kemerovo: Kuzbassvuzizdat, 2001.
4. Ordin, A.A. and Klishin, V.I., Optimizatsiya tekhnologicheskikh parametrov gornodobyvayushchikh predpriyatii na osnove lagovykh modelei (Optimizing Technological Parameters of Mines Based on Lag Models), Novosibirsk: Nauka, 2009.
5. Ordin, A.A. and Metel’kov, A.A., Optimization of the Fully Mechanized Stoping Face Length and Efficiency in a Coal Mine, J. Min. Sci., 2013, vol. 49, no. 2, pp. 254–264.
6. Ordin, A.A., Nikol’sky, A.M., and Metel’kov, A.A., Modeling and Optimization of Preparatory Work and Stoping in a Coal Mine Panel, J. Min. Sci., 2013, vol. 49, no. 6, pp. 941–949.
7. Federal’nye normy i pravila v oblasti promyshlennoi bezopasnosti “Pravila bezopasnosti v ugol’nykh shakhtakh” (Federal Industrial Safety Codes: Safety Regulations for Coal Mines), Series 05, issue 40, Moscow: Nauch.-tekh. tsentr issled. probl. prom. bezop., 2014.
8. Govorukhin, Yu.M., Development of Method to Estimate Air Distribution Parameters to Decelerate Oxidation Processes in Mined-Out Areas in Coal Mines, Cand. Tech. Sci. Dissertation, Kemerovo: SibGIU, 2012.
9. Prokhvatilov, S.A., Eremenko, V.A., Nikitin, S.G., Miletenko, N.A., and Eruslanov, A.P., Geodynamic Zoning in Coal Mine, GIAB, 2013, no. 9.
10. Borisov, A.A., Mekhanika gornykh porod i massivov (Mechanics of Rocks and Rock Masses), Moscow: Nedra, 1980.
11. Rukovodstvo po bor’be s endogennymi pozharami na shakhtakh Minugleproma SSSR (Guidelines on Combating Endogenous Fires in Mines of the USSR Ministry of Coal Industry), Donetsk, 1990.
12. MDG 1006 Spontaneous Combustion Management—Technical Reference—Mine Safety Operations, Branch Industry and Investment, NSW, May 2011.
13. Rukovodstvo po obnaruzheniyu i lokalizatsii ochagov podzemnykh pozharov po vudeleniyu radona (Guidelines on Detection and Confinement of Underground Fire Sources Based on Radon Emissions), Kemerovo: RosNIIGD, 1998.
GEODATA-BASED MODELING OF TRUCK TRANSPORT
IN OPEN PIT MINES
A. A. Botvinnik
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: alexbtvn@rambler.ru
In the framework of geo-information model of a coal deposit and open pit mine, the author derives analytical expressions for calculating work of rock haulage from face to start point of transport incline, considering characteristics of the road obtained in the course of geo-information modeling. Alternative calculations of freight ton-kilometers and work of vehicles to overcome gravity and rolling resistance are analyzed. The example of calculations for the conditions of a particular open pit coal mine contains comparison of one- and two-flank mining schemes.
Open pit mine, rock mass haulage work, overburden rehandling, concentratioon points, road configuration
DOI: 10.1134/S1062739115040139 REFERENCES
1. Trubetskoy, K.N., Potapov, M.G., Vinnitsky, K.E., and Mel’nikov, N.N., Otkrytye gornye raboty: spravochnik (Open Pit Mining: Manual), Moscow: Gornoe byuro, 1994.
2. Tanaino, A.S. and Botvinnik, A.A., Three-Dimensional Solution of Mining-Geometric Problems in a Graphic Dialog Regime in Planning Opencast, J. Min. Sci., 1999, vol. 35, no. 6, pp. 640–653.
3. Shchadov, M.I., Freidina, E.V., Botvinnik, A.A., and Dvornikova, A.N., System Control of Coal Quality in Open Pit Mining, Ugol’, 2003, no. 2.
4. Vasil’ev, M.V., Sirotkin, Z.L., and Smirnov, V.P., Avtomobil’nyi transport kar’erov (Motor Transport in Open Pit Mines), Moscow: Nedra, 1973.
ULTIMATE LENGTH AND CAPACITY OF PRODUCTION HEADING
WITH REGARD TO GAS CONTENT, CONSIDERING NONUNIFORM AIR FLOW
A. A. Ordin, A. M. Timoshenko, and S. A. Kolenchuk
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: ordin@misd.nsc.ru
East Research Institute,
ul. Institutskaya 3, Kemerovo, 650002 Russia
Giprougol Institute,
ul. Trikotazhnaya 41, Novosibirsk, 630015 Russia
Procedures for calculating permissible length and capacity of a fully mechanized production heading with regard to gas content and considering nonuniform air flow across and along longwall are described. Nonlinear relations are derived for methane concentrations and air leakage into mined-out area. It is proposed to assess a production heading capacity based on the gas-related permissible length of the heading and the coal cutting chart with a shearer. It is found that the increased gas content of coal and higher air leakage into mined-out area results in reduction of gas-related length and capacity of production headings.
Mine, coal bed, permissible length and output of production heading, gas factor, airflow velocity nonuniformity, air leakage, methane concentration
DOI: 10.1134/S1062739115040140 REFERENCES
1. Reznikov, E.L., Appropriate Efforts, Ugol’ Kuzbassa, 2013, no. 6.
2. Ermolaev, A.M., Egorov, P.V., and Ermolaev, A.A., Distribution of Ultimate Gas-Nonhazardous Capacity of Production Headings in Super Gas-Hazardous Mines, Ugol’, 2006, no. 11.
3. Slastunov, S.I., Karkashadze, G.G., Kolikov, K.S., and Ermak, G.P., Calculation Procedure for Permissible Coal Breakage Face Output by Gas Factor, J. Min. Sci., 2013, vol. 49, no. 6, pp. 888–893.
4. Rukovodstvo po proektirovaniyu ventilyatsii ugol’nykh shakht (Manual on Coal Mine Ventilation Design), Makeevka–Donbass, 1989.
5. Rukovodstvo po proektirovaniyu ventilyatsii ugol’nykh shakht (Manual on Coal Mine Ventilation Design), Kiev, 1994.
6. Rukovodstvo po proektirovaniyu ventilyatsii ugol’nykh shakht (Manual on Coal Mine Ventilation Design), Moscow, 2010.
7. Instruktsiya po primeneniyu skhem provetrivaniya vyemochnykh uchastkov shakht s izolirovannym otvodom metana iz vyrabotannogo prostranstva s pomoshch’yu gazootsasyvayushchikh ustanovok (Guidelines on Mine Ventilation Charts with Isolated Methane Removal from Mined-Out Area Using Gas-Suction Plants), Approved by the Federal Environmental, Industrial and Nuclear Supervision Service of the Russian Federation, Order no. 680 as of Dec 1, 2011.
8. Grashchenkov, N.F., Petrosyan, A.E., Frolov, M.A. et al., Rudnichnaya ventilyatsiya: spravochnik (Mine Ventilation: Quick Reference), K. Z. Ushakov (Ed.), Moscow: Nedra, 1988.
9. Timoshenko, A.M., Baranova, N.N., Nikiforov, D.V. et al., Some Aspects of Using Regulatory Documents in Planning of High-Capacity Production Areas in Coal Mines, Vest. NTs VostNII, 2010, no. 1.
10. Pravila bezopasnosti v ugol’nykh shakhtakh (Coal Mine Safety Regulations), Federal Mining and Industrial Supervision of the Russian Federation, Decree no. 50 as of Jun 5, 2003.
11. Ordin A. A. and Metel’kov, A.A., Optimization of the Fully Mechanized Stoping Face Length and Efficiency in a Coal Mine, J. Min. Sci., 2013, vol. 49, no. 2, pp. 254–264.
12. Ordin, A. A. Nikol’sky, A.A., and Metel’kov, A.A., Modeling and Optimization of Preparatory Work and Stoping in a Coal Mine Panel, J. Min. Sci., 2013, vol. 49, no. 6, pp. 941–949.
13. Ordin, A. A. Nikol’sky, A.A., and Metel’kov, A.A., Optimizatsiya tekhnologii podzemnoi razrabotki pologikh ugol’nykh plastov. Osnovnye zavisimosti i zakonomernosti mekhanizirovannoi dobychi uglya v dlinnykh ochistnykh zaboyakh (Optimization of Underground Mining Technology for Gently Dipping Coal. Basic Relations and Mechanisms of Coal Longwalling), Saarbrucken: Palmarium Academic Publishing, 2013.
REDUCTION OF COAL BED METHANE RELEASE
UNDER HIGH-RATE ADVANCE OF PRODUCTION FACE
A. A. Ordin and A. M. Timoshenko
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: ordin@misd.nsc.ru
VostNII Science Center,
ul. Institutskaya 3, Kemerovo, 650002 Russia
The theoretical proof is presented for absolute coal bed methane release as a nonlinear extremum function of production face output. The article gives actual and theoretical evidences of reduction in absolute coal bed methane release under high-rate advance of production face.
Mine, coal bed, absolute and relative methane release, productin face advance rate, methane concentration
DOI: 10.1134/S1062739115040152 REFERENCES
1. Trubetskoy, K.N., Ruban, A.D., and Zaburdyaev, V.S., Justification Methodology of Gas Removal Methods and Their Parameters in Underground Coal Mines, J. Min. Sci., 2011, vol. 47, no. 1, pp. 1–9.
2. Trubetskoy, K.N., Ruban, A.D., and Zaburdyaev, V.S., Characteristics of Methane Release in Highly Productive Coal Mines, J. Min. Sci., 2011, vol. 47, no. 4, pp. 467–475.
3. Timoshenko, A.M., Baranova, M.N., Nikiforov, D.V., et al., Some Aspects of Application of Regulatory Documents in Planning High-Productive Panels in Coal Mines, VostNII Bulletin, 2010, no. 1.l
4. Bokii, A.B., Influence of Coal Production Capacity on Greenhouse Gas Emission in Mines, Geotekhnicheskaya mekhanika: sb. nauch. trudov (Geotechnical Mechanics: Collection of Scientific Papers), Dnepropetrovsk, 2010, issue 88.
5. Rukovodstvo po proektirovaniyu ventilyatsii ugol’nykh shakht. Proekt (Guidelines on Coal Mine Ventilation Planning. Draft), Moscow, 2010.
6. Ordin, A.A., Timoshenko, A.M., and Kolenchuk, S.A., Ultimate Length and Output of Production Heading with Regard to gas Content, Considering Nonuniform Air Flow, J. Min. Sci., 2015, vol. 51,
no. 4, pp. 771–778.
7. Rukovodstvo po proektirovaniyu ventilyatsii ugol’nykh shakht (Guidelines on Coal Mine Ventilation Planning), Makeevka–Donbass, 1989.
8. Rukovodstvo po proektirovaniyu ventilyatsii ugol’nykh shakht (Guidelines on Coal Mine Ventilation Planning), Kiev, 1904.
9. Instruktsiya po primeneniyu skhem provetrivaniya vyemochnykh uchastkov shakht s izolirovannym otvodom metana iz vyrabotannogo prostranstva s pomoshch’yu gazootsasyvayushchikh ustanovok (Guidelines on Ventilation Schemes for Mine Districts with Isolated Methane Drainage from Mined-Out Areas Using Gas Suction Plants), Approved by the Decree no. 680 of the Federal Service on Ecological, Technological and Nuclear Supervision of the Russian Federation dated Dec 1, 2011.
10. Grashchenkov, N.F., Petrosyan, A.E., Frolov, M.A., et al., Rudnichnaya ventilyatsiya: spravochnik (Mine Ventilation: Manual), K. Z. Ushakov (Ed.), Moscow: Nedra, 1988.
11. Polevshchikov, G.Ya., Shinkevich, M.V., and Plaksin, M.S., Gas-Kinetic Features of Methane Decomposition in Conveyor Drift of a Panel, GIAB, 2011, no. 8.
12. Zaburlyaev, G.S., Novikova, I.A., and Podobrazhin, A.S., Methane and Dust Emission under Operation of Shearing Drums, GIAB, 2008, no. 53.
13. Myshkovsky, M. and Pashedag, U., Plougher or Shearer, Glukauf, 2009, no. 3.
14. Borshchev, V.Ya., Oborudovanie dlya izmel’cheniya materialov (Grinding Equipment), Tambov:
TGTU, 2009.
15. Leont’ev, A.V., Osnovy teorii fil’tratsii (Basics of Flow Theory), Moscow: MGU, 2009.
16. Ordin, A.A. and Metel’kov, A.A., Optimization of the Fully-Mechanized Stoping Face Length and Efficiency in a Coal Mine, J. Min. Sci., 2013, vol. 49, no. 2, pp. 254–264.
MINERAL DRESSING
EXPERIMENTAL VALIDATION OF MECHANISM FOR PULSED ENERGY EFFECT ON STRUCTURE, CHEMICAL PROPERTIES AND MICROHARDNESS
OF ROCK-FORMING MINERALS OF KIMBERLITES
I. Zh. Bunin, V. A. Chanturia, N. E. Anashkina, and M. V. Ryazantseva
Institute of Integrated Mineral Development—IPKON,
Russian Academy of Sciences,
Kryukovskii tupik 4, Moscow, 111020 Russia
e-mail: numim_i@mail.ru
Using the Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), microscopy and microhardness test methods, the change in the crystalline and chemical properties and in microhardness of rock-forming minerals of kimberlites as a result of exposure to high-power nanosecond electromagnetic pulses (HPEM) has been studied. From FTIR and XPS data the non-thermal effect of HPEM results in damage of surface microstructure of dielectric minerals due to formation of microcracks, surface breakdowns and other defects, which ensure effective weakening of rock-forming minerals and reduction in their microhardness by 40–66%.
Kimberlite rock-forming minerals, high-voltage nanosecond pulses, Fourier transform infrared
spectroscopy, X-ray photoelectron spectroscopy, microscopy, surface, microhardness
DOI: 10.1134/S1062739115040177 REFERENCES
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5. Boriskov, F.F. and Alekseev, V.D., Impul’snye i avtogennye metody pererabotki syr’ya (Impulse and Autogenous Mineral Processing), Ekaterinburg: UrO RAN, 2005.
6. Goncharov, S.A., Fiziko-tekhnicheskie osnovy resursosberezheniya pri razrushenii gornykh porod (Physical and Technical Resource-Saving Fundamentals of Rock Failure), Moscow: MGGU, 2007.
7. Chanturia, V.A. and Vigdergauz V. E., Elektrokhimiya sul’fidov. Teoriya i praktika flotatsii (Sulfide Electrochemistry. Theory and Practice of Flotation), Moscow: Ruda Metally, 2008.
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9. Bunin, I.Zh., Theoretical Fundamentals of Nanosecond Electromagnetic Impulse Effects on Disintegration and Exposure of Finely Dispersed Mineral Complexes and Precious Metal Recovery from Ores, Dr. Tech. Sci. Thesis, Moscow, 2009.
10. Chanturia, V.A., Bunin, I.Zh., Ryazantseva, M.V., and Filippov, L.O., Theory and Application of High-Power Nanosecond Pulses to Processing of Mineral Complexes, Min. Proc. Extract. Metallurgy Rev., 2011, vol. 32, no. 2.
11. Rostovtsev, V.I., Scientific Justification and Development of Intensifying Radiation and Electrochemical Effects on Solid and Liquid Phases of Rebellious Raw Mineral Materials, Dr. Tech. Sci. Thesis, Novosibirsk, 2012.
12. Chanturia, V.A., Gulyaev, Yu.V., Lunin, V.D., Bunin, I.Zh., Cherepenin, V.A., Vdovin, V.A., and Korzhenevsky, A.V., Exposure of Rebellious Gold Ores under Powerful Electromagnetic Pulses, Dokl. Akad. Nauk, 1999, vol. 366, no. 5.
13. Kotov, Yu.A., Mesyats, G.A., Filatov, A.L., Koryukin, B.M., Boriskov, F.F., Korzhenevsky, A.V., Motovilov, V.A., and Shcherbinin, S.V., Complex Nanosecond Pulse Treatment of Pyrite Wastes at Mining and Ore-Preparation Integrated Works, Dokl. Akad. Nauk, 2000, vol. 372, no. 5.
14. Chanturia, V.A., Gulyaev, Yu.V., Bunin, I.Zh., Vdovin, V.A., Korzhenevsky, A.V., Lunin, V.D.,
and Cherepenin, V.A., Synergic Effect of Powerful Electromagnetic Pulses and Pore Moisture on Exposure of Gold-Bearing Materials, Dokl. Akad. Nauk, 2001, vol. 379, no. 3.
15. Chanturia, V.A., Bunin, I.Zh., Lunin, V.D., Gulyaev, Yu.V., Bunina, N.S., Vdovin, V.A., Voronov, P.S., Korzhenevsky, A.V., and Cherepenin, V.A., Use of High-Power Electromagnetic Pulses in Processes
of Disintegration and Opening of Rebellious Gold-Containing Raw Material, J. Min. Sci., 2001, vol. 37, no. 4, pp. 427–437.
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Lunin, V.D., Chanturia, V.A., and Cherepenin, V.A., Experimental Investigation into Non-Thermal Effect of Powerful Electromagnetic Pulses on Rebellious Gold-Bearing Materials, Izv. RAN, Ser. Fiz., 2001,
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17. Ivanova, T.A., Bunin, I.Zh., and Khabarova, I.A., Peculiarities of Sulfide Mineral Oxidation under Effect of Nanosecond Electromagnetic Pulses, Izv. RAN, Ser. Fiz., 2008, vol. 72, no. 10.
18. Didenko, A.N., Zverev, B.V., and Prokopenko, A.V., Microwave Failure and Grinding of Hard Rocks in Terms of Kimberlite, Dokl. Akad. Nauk, 2005, vol. 403, no. 2.
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41. Viktorov, S.D., Golovin, Yu.I., Kochanov, A.N., Tyurin, A.I., et al., Micro- and Nano-
Indentation Approach to Strength and Deformation Characteristics of Minerals, J. Min. Sci., 2014, vol. 50, no. 4, pp. 652–659.
42. Nosov, Yu.G. and Derkachenko, L.I., After-Effects of Microhardness Tests of Diamond Spar, Zh. Tekh. Fiz., 2003, vol. 73, no. 10.
43. Zeldovich, Ya.B., Buchachenko, A.L., Frankevich, E.L., Magnetic-Spin Effects in Chemistry and Molecular Physics, Usp. Fiz. Nauk, 1988, vol. 155, no. 1.
44. Makara, V.A., Vasil’ev, M.A., Steblenko, L.P., Koplak, O.V., et al., Variations in Impurity Composition and Microhardness of Near-Surface Layers in Silicium Crystals under Magnetic Field Effect, Fizika Tekhn. Poluprovod., 2008, vol. 2, no. 10.
45. Makara, V.A., Korotchenkov, O.A., Steblenko, L.P., Podolyan, A.A., and Kalinichenko, D.V., Effect of Weak Magnetic Field on Micromechanical and Electrophysical Characteristics of Silicium in Helioenergetics, Fizika Tekhn. Poluprovod., 2013, vol. 47, no. 5.
MODELING AND ANALYSIS OF PHYSICOCHEMICAL PROCESSES
IN RECIRCULATING WATER CONDITIONING
I. V. Pestryak
National University of Science and Technology—MISiS,
Leninskii pr. 4, Moscow, 119049 Russia
e-mail: irina_ucdp@msmu.ru
The current technologies of mineral mining, processing and beneficiation require introduction of closed water circulation. A common ecological and technological objective is in this case reduction of concentration of copper and commercial-grade fat acid ions that worsen flotation. A promising way of reaching the set objective is preliminary mixing of different waste water flows with maximum concentrations of the specified ions. The thermodynamic calculations justify optimized water treatment modes when engineering-and-economic performance of copper–molybdenum ore dressing remains unaltered, consumption of fresh natural water is lowered, and water supply is enhanced.
Recirculating water, conditioning, copper cations, commercial-grade fat acids, ground water, ore flotation
DOI: 10.1134/S1062739115040189 REFERENCES
1. Baimakhanov, M.T., Zero-Discharge Water Circulation at Non-ferrous Metal Ore-Preparation Plants with Concurrent Mastering of their Technology, Tsv. Met., 2010, no. 4.
2. Chanturia, V.A. and Lunin, V.D., Elektrokhimicheskie metody intensifikatsii protsessa flotatsii (Electrochemical Methods for Flotation Intensification), Moscow: Nauka, 1983.
3. Kozin, V.Z., Morozov, Yu.P., Koryukin, B.M., Koltunov, A.V., Tarchevskaya, I.G., and Komlev, S.G., Tailings and Tailing Dumps at Mineral Processing Factories, Izv. vuzov, Gorny Zh., 1996, nos. 3/4.
4. Morozov, V.V., Scientific Fundamentals of Sewage Treatment and Circulating Water Conditioning with Utilization of Valuable Components at Mining and Ore-Preparation Integrated Works, GIAB, 1999, no. 6.
5. Medyanik, N.L. and Girevaya, Kh.Ya., Recovery of Copper Ions from Waste Water Effluents by Precipitating-Reducing Agents, Vestn. MGTU, 2007, no. 1.
6. Abramov, A.A., Flotatsiya. Fiziko-khimicheskoe modelirovanie protsessov (Flotation. Physical-and-Chemical Simulation of the Processes), vol. 6, Moscow: MGGU, 2010.
7. Morozov, V.V. and Avdokhin, V.M., Optimization of Polymetallic Ore Processing in Terms of Monitoring and Adjustment of Ionic Composition of Pulp and Circulating Water, GIAB, 1998, no.1.
8. Erdenetuyaa, O., Pestryak, I.V., and Morozov, V.V., Development of Reagent-free Method for Circulating Water Conditioning at Erdenet Mining Corporation, GIAB, 2012, no. 8.
9. Garrels, R.M. and Christ, C.M., Solutions, Minerals, and Equilibria, New York: Jones & Bartlett Publisher, 1965.
COMPOSITION OF MULTICOMPONENT HERACLEUM EXTRACTS AND ITS EFFECT ON FLOTATION OF GOLD-BEARING SULFIDES
T. A. Ivanova, T. N. Matveeva, V. A. Chanturia, and E. N. Ivanova
Institute of Integrated Mineral Development—IPKON,
Russian Academy of Sciences,
Kryukovskii tupik 4, Moscow, 111020 Russia
e-mail: tivanova06@mail.ru
Using the proprietary method, the authors have obtained flotation agent BO—extract of atomized leaves and stalks of Heracleum sosnowskyi (hogweed), and analyzed its composition. Qualitative tests, thin-layer chromatography (TLC), ultraviolet spectrophotometry and flotation tests show that aqueous and organic extracts contain substances that differ in chemical and process properties. The article gives test results for aqueous, alcoholic and aqueous–alcoholic extracts BO used as modifiers in chalcopyrite and pyrite flotation. Selective properties of aqueous and aqueous–alcoholic extracts BO are characterized. The highest depression ability relative to pyrite is a characteristic of aqueous BO extract obtained at pH = 3, with heating and treatment in ultrasonic bath. Organic extracts contain mostly furocoumarins, aspic oils and resins, and have no material effect on flotation activity of pyrite.
Sulfide selection, flotation, gold-bearing chalcopyrite and pyrite sulfides, recovery, vegetable modifiers, extraction, heracleum
DOI: 10.1134/S1062739115040190 REFERENCES
1. Shubov, L.Ya., Ivankov, S.I., and Shcheglova, N.K., Flotatsionnye reagenty v protsessakh obogashcheniya mineral’nogo syr’ya (Flotation Agents in Mineral Processing), Handbook, Moscow: Nedra, 1990.
2. Matveeva, T.N., Ivanova, T.A., and Gromova, N.K., Sorption and Flotation Properties of Agents of Vegetable Origin in Selective Flotation of Sulfide Precious-Metal-Bearing Minerals, Tsv. Met., 2012, no. 12.
3. Robertson, C., Bradshaw, D., and Harris, P. Decoupling the Effects of Depression and Dispersion in the Batch Flotation of a Platinum Bearing Ore, Proc. 22nd IMPC, Cape Town, South Africa, 2003.
4. Musikhin, P.V. and Sigaev, A.I., Investigation of Physical Properties and Chemical Composition
of Heracleum Sosnowskyi and Production of Fiber Semi-Product from It, Sovr. Naukoem. Tekhnol.,
2006, no. 3.
5. Mishurov, V.P. and Skupchenko, L.A., RF patent no. 2131728, June 20, 1999.
6. Vardanyan, R.L., Vardanyan, L.P., Arutyunyan, R.S., et al., Kinetic Regularities of Lecithin Oxidation and its Stabilization, Khim. Rast. Syr’ya, 2009, no. 1.
7. Asemkulova, G.B., Chemical Composition of Some Feeding Crops and Evaluation of Silage Grade Kormoproizv., 2011, no. 11.
8. Orlin, N.A., Recovery of Coumarins from Heracleum, Usp. Sovr. Estestvozn. Biol. Nauki. Komment.,
2010, no. 3.
9. Terent’eva, M.V. and Chekalinskaya, I.I., Content of Some Microelements in New Feeding Plants, Vesti AN BSSR, Ser. Biol. Nauk, 1964, no. 3.
10. Grinkevich, N.I., Safronovich, L.N., Coumarins, Khimicheskii analiz lekarstvennykh rastenii (Chemical Analysis of Drug Plants), Chap. 8, Moscow: Vysshaya Shkola, 1983.
11. Murav’ev, I.A., Tekhnologiya lekarstv (Drug Technology), vol. II, Moscow: Meditsina, 1980.
12. Molchanov, G.I., Ul’trazvuk v farmatsii (Ultrasound in Pharmacy), Moscow: Meditsina, 1980.
13. Golovchenko, V.V., Structural-Chemical Characteristics of Physiologically Active Pectin Polysaccharides, Dr. Chem. Sci. Thesis, Syktyvkar, 2013.
14. Mikhailova, E.A., Shcherbakova, T.P., and Shubakov, A.A., Investigation into Application of Pectin Polysaccharide Products on Herbs in Field Conditions, Int. Conf. Scientific Achievements in Biology, Chemistry, and Physics, Novosibirsk, 2012.
15. Trusov, P.D., Organicheskie kolloidy i ikh ispol’zovanie vo flotatsii (Organic Colloids and Their Application in Flotation), vol. XII, issue 3, Leningrad: Len. Gor. Inst., 1939.
16. Khan, G.A., Gabrielova, L.I., and Vlasova, N.S., Flotatsionnye reagenty i ikh primenenie (Flotation Agents and Their Use), Moscow: Nedra, 1986.
17. Shapiro, D.K., Praktikum po biokhimii (Workshop on Biochemistry), Minsk: Vysshaya Shkola, 1976.
18. Mal’tseva, A.A., Chistyakova, A.S., Sorokina, A.A., et al., Quantitative Evaluation of Tinning Substances in Common Persicaria, Vestn. VGU, Ser. Khim., Biol., Farmats., 2013, no. 2.
INTERACTION OF GOLD-BEARING SULFIDES
WITH MODIFIED CHLORINE SOLUTIONS
A. L. Samusev and E. S. Tomskaya
Institute of Integrated Mineral Development—IPKON,
Russian Academy of Sciences,
Kryukovskii tupik 4, Moscow, 111020 Russia
e-mail: samusev_al@ipkonran.ru
The article reports tests on studying mechanism of interaction between modified chlorine solutions and gold-bearing sulfides. The change in texture, structural properties and elemental composition of sulfides after electrochemical treatment is analyzed. The authors indicate basic negative factors reducing dissolution velocity of sulfides.
Rebellious gold ore, arsenopyrite, pyrite, chlorine, hypochlorite, electrochemical treatment
DOI: 10.1134/S1062739115040202 REFERENCES
1. Mineev, G.G. and Panchenko, A.F., Rastvoritel’ zolota i serebra v gidrometallurgii (Gold and Silver Solvents in Hydrometallurgy), Moscow: Metallurgia, 1994.
2. Chanturia, V.A., Fedorov, A.A., Chekushkina, T.V., Zverev, I.V., and Zubenko, A.V., Electrochemical Intensification of Opening of Rebellious Gold-bearing Ore, Gorny Zh., 1997, no. 10.
3. Paleev, P.L., Gulyashinov, A.N., Antropova, I.G., and Gulyashinov, P.A., Gold Recovery from Rebellious Arsenopyrite Ores and Concentrates, Zoloto Tekhn., 2013, no. 2(20).
4. Chanturia, V.A., Gulayev, Yu.V., Bunin, I.Zh., Vdovin, V.A., Korzhenevsky, A.V., Lunin, V.D.,
and Cherepenin, V.A., Synergetic Effect of Powerful Electromagnetic Pulses and Porous Moisture on Exposure of Gold-Bearing Raw Materials, Dokl. RAN, 2001, vol. 379, no. 3.
5. Samusev, A.L. and Munenko, V.G., Productivity of Chemical-Electrochemical Gold Leaching from Rebellious Ore, J. Min. Sci., 2014, vol. 50, no. 1, pp. 171–176.
6. Kostina, G.M. and Chernyak, A.S., Oxidizing Electrochemical Leaching of Gold-Arsenic and Other Sulfide Concentrates, Gidrometallurgiya zolota (Gold Hydrometallurgy), Moscow, 1980.
7. Garrels, R.M. and Christ, S.L., Solutions, Minerals and Equilibria, USA: Jones & Bartlett Publishers
Int., 1965.
COLLECTING ABILITY OF EASILY DESORBED XANTHATES
S. A. Kondrat’ev, N. P. Moshkin, and I. A. Konovalov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: kondr@misd.nsc.ru
Lavrentiev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Lavrentieva 15, Novosibirsk, 630090 Russia
e-mail: nikolay.moshkin@gmail.com
The analysis focuses on collecting ability of easily desorbed (ED-forms) ethyl and butyl xanthates. The authors give visual proof of “dry” spot extension on mineral surface when xanthates that are active relative to air–water interface are desorbed from it. It is shown that ED-forms of agents, being products of interaction between xanthates and heavy metal salts, can remove water from film between mineral particle and air bubble. The main force on water in the film is conditioned by surface tension nonuniformity at the moment of local rupture and by surface pressure of molecules in the film of agent ED-forms. The collecting ability of ED-forms of xanthate is determined as the rate of its influence on water in the film. The forces exerted on water in the film of ED-forms of ethyl and butyl xanthates are estimated numerically. The dependence of volumetric water flow from the film on the surface tension of agent ED-forms active at air–water interface is found. It is shown that collecting ability of an agent is dependent on surface tension of solution of its ED-forms and is governed by structure of hydrocarbon fragment of the collector.
Flotation, flotation agent activity, surface tension, water film, lubrication theory equations, physical adsorption, selectivity
DOI: 10.1134/S1062739115040214 REFERENCES
1. Bulatovic, S.M., Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores, Elsevier Science & Technology Books, 2007.
2. Kulkarni, R.D. and Somasundaran, P., Kinetics of Oleate Adsorption at the Liquid/Air Interface and its Role in Hematite Flotation, Symposium series, AIChE, 1975, vol. 71, no. 150.
3. Bleier, A., Goddard, E.D., and Kulkarni, R.D., Adsorption and Critical Flotation Conditions, J. Colloid Interf. Sci., 1977, vol. 59, no. 3.
4. Finch, J.A. and Smith, G.W., Dynamic Surface Tension of Alkaline Dodecylamine Solutions, J. Colloid Interf. Sci., 1973, vol. 45, no.1.
5. Zhivankov, G.V. and Ryaboi, V.I., Collecting Properties and Surfactant Activity of Higher Aeroflots, Obogashch. Rud, 1985, no. 3.
6. Wark, E. and Wark, I., Influence of Micelle Formation on Flotation, Nature, 1939, vol. 143.
7. Klassen, V.I. and Tikhonov, S.A., Effect of Sodium Oleate on Flotation Properties of Air Bubble Surface, Tsv. Met., 1960, no. 10.
8. Kondrat’ev, S.A., Evaluation of Flotation Activity of Collecting Agents, Obogashch. Rud, 2010, no. 4.
9. Kondrat’ev, S.A., Activity and Selectivity of Carboxylic Acids as Flotation Agents, J. Min. Sci., 2012,
vol. 48, no. 6, pp. 1039–1046.
10. Kondrat’ev, S.A. and Moshkin, N.P., Estimate of Collecting Force of Flotation Agent, J. Min. Sci., 2015, vol. 51, no. 1, pp. 150–156.
11. Levich, V.G., Physico-Chemical Hydrodynamics, Englewood, New York: Prentice-Hall, Scripta Technica, Inc., 1962.
12. Loitsyansky, L.G., Mekhanika zhidkosti i gaza (Liquid and Gas Mechanics), Moscow: Nauka, 1987.
13. Pukhnachev, V.V., Problem on Equilibrium of Free Anisothermal Liquid Film, Prikl. Mekh. Tekh. Fiz., 2007, vol. 4, no. 3.
14. Gaver, D.P. and Grotberg, J., The Dynamics of a Localized Surfactant on a Thin Film, J. Fluid Mechan., 1990, vol. 213.
15. Jensen, O.E. and Grotberg, J.B., The Spreading of Heat or Soluble Surfactant along a Thin Liquid Film, Physics of Fluids. A Fluid Dynamics 01/1993; 5(1):58–68. DOI: 10.1063/1.858789.
16. Levy, R., Shearer, M., and Witelski, T., Gravity-Driven Thin Liquid Films with Insoluble Surfactant: Smooth Traveling Waves, Europ. J. App. Math., 2008, vol. 18, no. 6.
17. Borgas, M. and Grotberg, J.B., Monolayer Flow on a Thin Film, J. Fluid Mech., 1988, vol. 193.
18. Birikh, R.V., Mizev, A.I., Rudakov, R.N., and Mazunina, E.S., Concentration Convection Initiated by Submerged Surfactant Resource, Convective Currents, 2009, issue 4.
19. Khan, G.A., Gabrielova, L.I., and Vlasova, N.S., Flotatsionnye reagenty i ikh primenenie (Flotation Agents and Their Use), Moscow: Nedra, 1986.
NEW METHODS AND INSTRUMENTS IN MINING
GEOMECHANICAL MONITORING OF TEMPORAL LINING IN RAILWAY TUNNELING IN COMPLEX GEOLOGICAL CONDITIONS
V. N. Oparin, V. F. Yushkin, G. N. Polyankin, A. N. Grishin,
A. O. Kuznetsov, and D. E. Rublev
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: 114@ngs.ru
Siberian Transport University,
ul. D. Koval’chuk 191, Novosibirsk, 630049 Russia
Novosibirsk State University,
ul. Pirogova 2, Novosibirsk, 630090 Russia
e-mail: oparin@misd.nsc.ru
The article describes the integrated method and results of deformation–wave monitoring of temporal lining in railway tunneling in complex geological conditions in the south of Western Siberia.
3D geometric parameters of temporal lining are measured by laser scanning at a span of 3 months, which enables comparing actual 3D models of temporal lining and rocks in reinforced tunnel section. Based on the data obtained at various times of observation, shifting of unmarked points of temporal lining and deformation of tunnel walls and arch were determined. High density scanning allows remote identification of comparatively small zones where structure of rocks and state of lining are changed. The authors analyze seismic vibration of rocks under hammering, which shows that peak spectral densities of elastic wave in rocks are conditioned by low-frequency (pendulum) wave generated at siltstone and coal interface, and are related with dimension of joints and with mechanical properties of rocks.
Block rock mass, temporal lining, tunnel lining, deformation monitoring, laser scanning, seismic wave, rock hardness coefficient, spectrum analysis
DOI: 10.1134/S1062739115040226 REFERENCES
1. Set of Rules 122.13330.2012. Rail- and Motorway Tunnels, Updated Edition of CN&R 32–04–97, Moscow: Minregion Rossii, 2012.
2. Kuznetsov, M.A. and Postnikova, O.V., Gidrogeologiya SSSR. Kemerovskaya oblast’ i Altaiskii krai. Zapadno-Sibirskoe geologicheskoe upravlenie (Hydrogeology of the USSR. The Kemerovo Region and Altai Territory. West Siberia Geology Department), vol. XVII, Moscow: Nedra, 1972.
3. Oparin, V.N., Kurlenya, M.V., Sidenko, G.G., Arshavsky, V.V., Akinin, A.A., Yushkin, V.F.,
and Tapsiev, A.P., RF patent no. 2097558, Byull. Izobret., 1997, no. 33.
4. Spravochnik (kadastr) fizicheskikh svoistv gornykh porod (Physical Properties of Rocks. Directory–Cadastre), Moscow: Nedra, 1975.
5. SNiP II-7–81. Construction in Seismic Areas (with revisions and amendments), Moscow: Gosstroi
Rossii, 2000.
6. VSN 190–78. Instruktsiya po inzhenerno-geologicheskim izyskaniyam dlya proektirovaniya i stroitel’stva metropolitenov, gornykh zheleznodorozhnykh i avtomobil’nykh tonnelei (Instruction on Engineering
and Geological Exploration in Design and Construction of Subway, Mining Railway and Motorway Tunnels), Moscow: Mintransstroi Rossii, 1978.
7. www.navgeocom.ru—web-site Navgeokom Ltd., Surface Laser Scanning. Equipment.
8. Oparin, V.N., Seredovich, V.A., Yushkin, V.F., Ivanov, A.V., and Prokop’eva, S.A., Application of Laser Scanning for Developing a 3D Digital Model of an Open Pit Side Surface, J. Min. Sci., 2007, vol. 43,
no. 5 pp. 545–554.
9. Panzhin, A.A., Solving Problems on Choice of Basic Reference Points in Studying Subsoil Displacements, Marksheid. Nedropol’z., 2012, no. 2.
10. Panzhin, A.A., Information Techniques for Diagnostics of Underworked Rock Mass and Simulation of Earth Surface State, Proc. All-Russia Sci. Conf. Information Technologies in Mining Industry, Ekaterinburg: IGD UB RAN, 2012.
11. Yushkin, V.F., 3D Rock Mass Modeling in Investigation into Geomechanical Properties in Mining Operations, vol. 3, Trans. 11th Int. Forum Interexpo Geo-Sibiria 2015, Proc. Int. Sci. Conf. Mineral Resource Exploration. Trends and Technologies for Exploration and Development of Mineral Resources. Geoecology, Novosibirsk: SGUGT, 2015.
12. Oparin, V.N., Yushkin, V.F., Rublev, D.E., Kulinich, N.A., Yushkin, A.V., Verification of Kinematic Expression for Pendulum Waves Based on Seismic Measurements in Terms of the Tashtagol Mine and Iskitim Marble Quarry, J. Min. Sci., 2015, vol. 51, no. 2, pp. 203–219.
13. Programma upravleniya stantsiei seismorazvedochnoi inzhenernoi tsifrovoi “Lakkolit 24-M” (Program for Management of Seismic-Exploration Engineering Digital Station Lakkolit 24-M, Model 01), Operator Manual, Moscow: OOO Logis (Ramenskoe), 2005.
14. Oparin, V.N., Simonov, B.F., Yushkin, V.F., Vostrikov, V.I., Pogarsky, Yu.V., and Nazarov, L.A., Geomekhanicheskie i tekhnicheskie osnovy uvelicheniya nefteotdachi plastov v vibrovolnovykh tekhnologiyakh (Geomechanical and Technical Principles to Enhance Oil Recovery by Vibrowave Technologies), Novosibirsk: Nauka, 2010.
15. Orlov, V.A., Panov, S.V., Parushkin, M.D., Fomin, Yu.N., Sher, E.N., and Yushkin, V.F., High-Sensitivity Laser Probing in Experimental Works on Elastic Waves in a One-Dimensional Block Medium, Proc. All-Russia Conf. in Partnership with Foreign Scientists Geodynamics and Stress State of the Earth’s Interior, vol. 1, Novosibirsk: IGD SO RAN, 2011.
16. Kharkevich, A.A., Spektry i analiz (Spectra and Analysis), Moscow: Gos. Izd. Tekh. Lit., 1957.
17. Oparin, V.N., Yushkin, V.F., Akinin, A.A., and Balmashnova, E.G., A New Scale of Hierarchically Structured Representatives as a Characteristic for Ranking Entities in a Geomedium, J. Min. Sci., 1998, vol. 34, no. 5, pp. 387–401.
18. Oparin, V.N. and Tanaino, A.S., Kanonicheskaya shkala ierarkhicheskikh predstavlenii v gornom porodovedenii (Canonical Scale to Represent Hierarchies in Science on Rocks), Novosibirsk:
Nauka, 2011.
PRECISION DILATOMETER WITH BUILT-IN SYSTEM OF ADVANCE
ALONG THE BOREHOLE
S. V. Serdyukov, N. V. Degtyareva, A. V. Patutin, and L. A. Rybalkin
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: ss3032@yandex.ru
The article describes engineering designs of dilatometer to measure transverse deformation in borehole subjected to internal pressure exerted through impermeable shell. The device is equipped with the robotized system for advance along the borehole without special sectional barrels. Functionality and capacities of the dilatometer are optimized for surveying in long directional drill holes in mines.
Borehole dilatometer, rocks, pressure meter tests, deformation characteristics, system of advance along borehole
DOI: 10.1134/S1062739115040238 REFERENCES
1. Ito T., Kato H., and Tanaka H., Innovative Concept of Hydrofracturing for Deep Stress Measurements, “Rock Stress and Earthquakes, Furen Xie (Ed.), Proc. 5th Int. Symp. on In-Situ Rock Stress, London: CRC Press/Balkema, 2010.
2. Impression Packers. Available at: http://www.inflatable-packers.com/images/ documents/ ProductSheets2013/EngProdSheets2013/impression%20packers-jh050413–01%20engrev.00.pdf (last visited June 5, 2015).
3. Martynyuk, P.A., Pavlov, V.A., and Serdyukov, S.V., Assessment of Stress State in Rocks by Deformation Characteristic of Borehole Zone with Hydrofracture, J. Min. Sci., 2011, vol. 47, no. 3, pp. 290–296.
4. Kurlenya, M.V., Serdyukov, S.V., and Patutin, A.V., Estimating Deformation Properties of Rocks by Pressuremeter Test Data Obtained in Hydrofractured Interval, J. Min. Sci., 2015, vol. 51, no. 4, pp. 718–723.
5. Dilatometer tests. Available at: http://www.solexperts.com/index.php?option=com_content &view=article&id=188&Itemid=214&lang=en (last visited inquiry June 5, 2015).
6. Borehole dilatometer Model DMP-95. Available at: http://www.esands.com/pdf/ Geotech/ Roctest/ESS_ROC_DMP95_BoreholeDilatometer.pdf (last visited June 5, 2015).
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