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JMS, Vol. 52, No. 3, 2016


M. V. Kurlenyaa, A. S. Serdyukov, G. S. Chernyshov, A. V. Yablokov, P. A. Dergach, and A. A. Duchkov

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
Trofimuk Institute of Oil and Gas Geology and Geophysics, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Koptyuga 3, Novosibirsk, 630090 Russia
Novosibirsk State University,
ul. Pirogova 2, Novosibirsk, 630090 Russia

The article puts forward a procedure to determine structure and physical properties of near-surface cohesive soil based on seismic surveying. The backbone of the approach is the use of distribution of P- and S-waves obtained from combination of the seismic refraction technique modification and the multi-channel surface wave analysis. The recovery of the physical properties uses correlation dependences. The authors give an example of field data processing. The field research covered a section of a motor road where groundwater level is determined and zones subjected to washout and deformation are detected.

Geological engineering, shallow seismic exploration, seismic refraction technique, multi-channel surface wave analysis, Rayleigh wave, physical and mechanical properties of soil, cohesive dispersed soil

DOI: 10.1134/S1062739116030598 

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7. 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. 50, no. 4, pp. 617622.
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11. Aki, K. and Richards, P.G., Quantitative Seismology, Freeman & Co, 1980.
12. Lai, C.G. and Rix, G.J., Simultaneous Inversion of Rayleigh Phase Velocity and Attenuation for Near-Surface Site Characterization, School of Civil and Environmental Engineering, Georgia Institute of Technology, 1998.
13. Solano, C. A. P., Two-Dimensional Near-Surface Seismic Imaging with Surface Waves: Alternative Methodology for Waveform Inversion, Ecole Nationale Superieure des Mines de Paris, 2013.

L. A. Nazarova and L. A. Nazarov

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
Novosibirsk State University,
ul. Pirogova 2, Novosibirsk, 630090 Russia

The authors model deformation and mass transfer in jointed and porous rock mass around a production well. The modeling based on the concept of a continuum with double porosity uses an original method with finite difference solution of mass transfer equations and analytical solution of pore elastoplasticity equations. From the numerical experiments, dimensions of irreversible deformation zones in the well bore zone grow with the parameter Bio. The estimate of the reservoir permeability decline in the course of operation, obtained from the pore elasticity and pore plasticity models, qualitatively agrees with the in situ observation data.

Fractured-and-porous rock mass, poroelasticity, double porosity, seepage, stress evolution, fracture zone, numerical modeling

DOI: 10.1134/S106273911603061X

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V. E. Mirenkov

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
e-mail: mirenkov@misd.nsc.ru

The practical calculation of rock mass deformation around an underground opening accounts for the unit weight of the rock mass by solving a complimentary problem on weightless rock mass. A domain with an opening is bounded by a plane with the preset zero vertical displacements, which enables taking into account difference of pressure along the height of the opening. This solution, with the adequately selected boundary conditions, is added with stress field of an intact rock mass and offers zero boundary conditions at the future opening perimeter, however, the issue on the validity of setting boundary conditions at the lower boundary of the calculation domain remains yet to be handled. This article presents a phenomenological model of rock mass deformation to answer the set question. It is taken into account that action of roof rock weight coincides with the orientation of tensile stresses at the opening perimeter and differs from it in the floor. The author thinks it is required to add the class of inverse problems of rock mechanics with the problems directly accounting for rock weight.

Underground opening, rock, bed, equation, solution, unit weight, stress, displacement, inverse problem

DOI: 10.1134/S1062739116030621 

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5. Hong Shen and Syed Muntazir Abbas, Rock Slope Reliability Analysis Based on Distinct Element Method Random Set Theory, Int. J. Rock Mech. Min. Sci., 2013, vol. 61, pp. 1522.
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A. B. Makarov, I. Yu. Rasskazov, B. G. Saksin, I. S. Livinsky, and M. I. Potapchuk

SRK Consulting (Russia) Ltd,
ul. Kuznetskii most 4/3, Bld. 1, Moscow, 125009 Russia
Institute of Mining, Far East Branch, Russian Academy of Sciences,
ul. Turgeneva 51, Khabarovsk, 680000 Russia

The authors present studies into geomechanics of Berezit goldpolymetal deposit at the stage of transition from open pit to underground mining. The authors have carried out geodynamic zoning and evaluated parameters of modern stress field. Rock mass ratings are used to assess physical properties of rocks. Rock mass stress state at various stages of mining is examined using numerical modeling, and underground mining system parameters are evaluated using Mathews procedure and analytical relations.

Ground conditions, geodynamic zoning, rock, stress state, rock mass rating indexes, physical properties, mathematical modeling, mining system parameters

DOI: 10.1134/S1062739116030633 

1. Makarov, A.B., Prakticheskaya geomekhanika (Applied Geomechanics), Moscow: Gornaya Kniga, 2006.
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V. N. Aptukov

Perm State National Research University,
ul. Bukireva 15, Perm, 614000 Russia
Galurgia JSC,
ul. Sibirskaya 94, Perm, 614000, Russia
e-mail: aptukov@psu.ru

The author offers a new deformation criterion for the compressive strength of salt rock specimens. The limiting principal strain is a function of stress parameter in the form of a ratio of hydrostatic pressure and stress intensity. The safety factor based on the deformation criterion is defined. The numerical modeling of experimental compression of various geometry specimens produces the deformation criterion for sylvinite and carnallite of Upper Kama deposit. The offered criterion is applicable to assessment of salt rock stability.

Deformation criterion, failure, salt rocks, strength loss, numerical modeling

DOI: 10.1134/S1062739116030645 

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14. Aptukov, V.N., Gilev, M.V., Konstantinova, S.A., and Merzlyakov, A.F., Deformation and Failure of Solikamsk Mine-1 Carnallite Specimens, Marksheider. Nedropolz., 2009, no. 6, pp. 6165.
15. Konstantinova, S.A. and Aptukov, V.N., Nekotorye zadachi mekhaniki deformirovaniya i razrusheniya solyanykh porod (Some Problems of Salt Rock Deformation and Failure Mechanics), Novosibirsk: Nauka, 2013.
16. Kolarov, D., Baltov, A., and Bontcheva, N., Mekhanika plasticheskikh sred (Mechanics of Plastic Media), Sofia: BAS, 1975.

S. P. Bakhaeva, V. A. Gogolin, and I. A. Ermakova

Gorbachev Kuzbass State Technical University,
ul. Vesennyaya 28, Kemerovo, 650000 Russia

The scope of the discussion covers the issues of open pit mining efficiency and safety with dry overburden dumping over sludge base. The stress analysis of a dump at Kedrovsky Open Pit Mine uses finite element modeling of linearly deformable medium based on geotechnical, surveying and hydromechanical data. The modeling produces the field of displacements of the dump and its base and the distribution of the MohrCoulomb strength criterion. The sludge base breakout-hazardous areas are revealed, and the displacements of the growing dump are predicted. The developed model enables operational forecasting of strength loss at dumps.

Dump, weak base, finite element method, stress state, displacement, MohrCoulomb criterion

DOI: 10.1134/S1062739116030657 

1. Fedoseev, A.I., Vegner, V.R., Protasov, S.I., and Bakhaeva, S.P., Practice of Replacement of Overburden from the Site of Sluicing Dump No. 1 at Kedrovsky Open Pit Mine, GIAB, 2004, no. 3, pp. 286273.
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B. L. Gerike, V. I. Klishin, and P. B. Gerike

Institute of Coal, Siberian Branch, Russian Academy of Sciences,
pr. Leningradskii 10, Kemerovo, 650065 Russia

Based on the analysis of qualitative interaction between rocks and a rock-breaking tool, a new coefficient of the tool efficiency is proposed. This coefficient makes it possible to estimate the quality of the tool impact on broken rocks and to predict energy input of rock breaking and, consequently, productivity of mining machines in specific geotechnical conditions.

Disk tool, rock mass, strength indexes, failure, energy input, efficiency coefficient

DOI: 10.1134/S1062739116030682 

1. Baron, L.I. and Glatman, L.B., Selecting Rotary Cutting Resistance Criterion for Rocks, Razrushenie gornykh porod sharoshechnym instrumentom (Rotary Cutting of Rocks), Moscow: Nauka, 1966.
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11. Logov, A.B., Gerike, B.L., and Raskin, A.B., Mekhanicheskoe razruzhenie krepkikh gornykh prood (Hard Rock Disintegration), Novosibirsk: Nauka, 1989.
12. Baron, L.I., Glatman, L.B., Kozlov, Yu.N., and Melnikov, I.I., Razrushenie gornykh porod prokhodcheskimi kombainami: razrushenie agregirovannymi instrumentami (Rock Disintegration by Shearers: Fracture by Aggregate Tools), Moscow: Nauka, 1977.
13. Lizunkin, V.M., Gerike, B.L., and Utsyn, Yu.B., Mekhanizirovannaya podzemnaya razrabotka krepkikh rud malomoshchnykh mestorozhdenii (Mechanized Underground Mining of Hard Thin Ore Bodies), Chita: ChitGTU, 1999.
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I. V. Kolykhalov and A. V. Patutin

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia

The authors analyze numerically growth of a cross fracture between two existing fractures under multiple directional hydrofracturing using chemically active mixtures. The scope of the studies embraces effect exerted by problem parameters, such as value and orientation of external compression field, rate of healing of fractures, size and intermediate spacing of fractures, on deviation of a fracture from its initial orientation. The results are meant for optimization of the local hydrofracturing method for steam-distribution and producing wells in low-gravity oil reservoirs.

Hydrofracturing, thermal mining, low-gravity oil

DOI: 10.1134/S1062739116030694 

1. Konoplev, Yu.P., Pitirimov, V.V., Tabakov, V.P. et al., Thermal Mining of Heavy Crude Oil and Natural Bitumen in Terms of Yarega Oil Field, GIAB, 2005, no. 3, pp. 246253.
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3. Morozyuk, O.A., Ways of Improving Efficiency of Thermal Mining of Anomalously Viscous Oil in Terms of Yarega Oil Field, Cand. Tech. Sci. Dissertation, Ukhta: UGTU, 2011.
4. Lekontsev, Yu.M. and Sazhin, P.V., Directional Hydraulic Fracturing in Difficult Caving Roof Control and Coal Degassing, J. Min. Sci., 2014, vol. 50, no. 5, pp. 914917.
5. Kurlenya, M.V., Altunina, L.K., Kuvshinov, V.A., Patutin, A.V., and Serdyukov, S.V., Growth Gel for Gas-Bearing Coal Bed Hydrofracturing in Mine Conditions, J. Min. Sci., 2012, vol. 48, no. 6, pp. 947953.
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7. Shilova, T.V. and Serdyukov, S.V., Protection of Operating Degassing Holes from Air Inflow from Underground Excavations, J. Min. Sci., 2015, vol. 51, no. 5, pp. 10491055.
8. Azarov, A.V., Kurlenya, M.V., Patutin, A.V., and Serdyukov, S.V., Mathematical Modeling of Stress State of Surrounding Rocks around the Well Subjected to Shearing and Normal Load in Hydraulic Fracturing Zone, J. Min. Sci., 2015, vol. 51, no. 6, pp. 10631069.
9. Salimov, O.V., Nasybullin, A.V., and Salimov, V.G., Effect of Multiple Fractures in the Far Zone on the Hydraulic Fracturing Efficiency, Neftepromysl. Delo, 2010, no. 10, pp. 2427.
10. Crouch, S.L and Starfield, A.M., Boundary Element Methods in Solid Mechanics, London: George Allen and Unwin, 1984.
11. Sher, E.N. and Kolykhalov, I.V., Propagation of Closely Spaced Hydraulic Fractures, J. Min. Sci., 2011, vol. 47, no. 6, pp. 741750.
12. Sher, E.N. and Kolykhalov, I.V., Determination of Hydrofracture Geometry in a Production Reservoir, J. Min. Sci., 2015, vol. 51, no. 1, pp. 8187.
13. Cherepanov, G.P., Mekhanika khrupkogo razrusheniya (Brittle Fracture Mechanics), Moscow: Nauka, 1974.
14. Alekseeva, T.E. and Martynyuk, P.A., Crack Emergence Trajectories at a Free Surface, J. Min. Sci., 1991, vol. 27, no. 2, pp. 9099.

S. R. Korzhenevsky, V. A. Bessonova, A. A. Komarsky, V. A. Motovilov, and A. S. Chepusov

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences,
ul. Amundsena 106, Ekaterinburg, 620016 Russia

Under analysis is electrohydraulic grinding of rocks under electric charge using nanosecond high-stress pulses to optimize ore pretreatment. A nanosecond high-voltage generator of pulses at a capacity to 500 MW is designed and tested. A flow-through discharge cell at a voltage to 550 kW is developed. The new method of mineral grinding is highly efficient and enables designing commercial plants for electrohydraulic rock processing.

Electric fluid breakdown, solid dielectric impulse breakdown, shock wave, high-voltage pulse generator, mineral grinding, ore pretreatment

DOI: 10.1134/S1062739116030706 

1. Revnivtsev, V.I., Gaponov, G.V, Zarogatsky, L.P. et al., Selektivnoe razrushenie mineralov (Selective Disintegration of Minerals), Moscow: Nedra, 1988.
2. Blekhman, I.I. and Finkelshtein, G.A., Selective Dissociation of Useful Minerals under Minimized Overgrinding, Sovershenstvovanie i razvitie protsessa podgotovki rud k obogashcheniyu (Improvement and Advance in Ore Pretreatment), Leningrad: Mekhanobr, 1975, pp. 149153.
3. Giyo, R., Problema izmelcheniya materialov i ee razvitie (Problem and Advance in Material Grinding), FrenchRussian translation, Moscow: Lit-ra storit., 1964.
4. Yutkin, L.A., Elektrogidravlicheskii effekt (Electrohydraulic Effect), MoscowLeningrad: Mashgiz, 1955.
5. Gylyi, G.A. and Malyushevskii, P.P., Vysokovoltnyi elektricheskii razryad v silovykh impulsnykh sistemakh (High-Voltage Electric Discharge in Pulsed Power Systems), Kiev: Naukova Dumka, 1977.
6. Usov, A.F., Semkin, B.V., and Zinovev, N.T., Perekhodnye protsessy v ustanovkakh elektroimpulsnoi tekhnologii (Transient Processes in Electric Impulse Engineering Plants), Leningrad: Nauka, 1987.
7. Kotov, Yu.A., Korzhenevsky, S.R., Motovilov, V.A. et al., RF patent no. 2150326, Byull. Izobret., 2000, no. 16.
8. Kotov, Yu.A., Mesyats, G.A., Filatov, A.L., Koryukin, B.M., Boriskov, F.F., Korzhenevsky, S.R., Motovilov, V.A., and Shcherbinin, S.V., Integrated Processes of Pyrite Tailings by Nanosecond Impulses, Dokl. Akad. Nauk, 2000, vol. 372, no. 5.
9. Zinovev, N.T., Kurets, V.I., Filatov, G.P., and Yushkov, A.Yu., Energy and Size Characteristics of Quartz Disintegration under Electric Impulses, Izv. vuzov, Fizika, 2011, no. 1/2.


V. V. Chervov, B. N. Smolyanitsky, and I. V. Tishchenko

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia

The authors report and discuss the experimental results on an air drill hammer with an elastic valve installed in the backstroke exhaust line for mechanical closing. It is approved that such air hammer is capable to ensure the wanted blow capacity at the fixed blow energy by varying blow frequency through adjustment of cross section choke coupling the backstroke and front stoke chambers of the hammer. With the larger cross section of the choke coupling, the maximum blow frequency is achieved and remains the same later on.

Air drill hammer, elastic valve, air flow rate, blow frequency, blow energy

DOI: 10.1134/S1062739116030718 

1. Nestle, H., BautechnikFachkunde Bau, Verlag Europa-Lehrmittel, Haan-Gruiten, 2001.
2. Smolyanitsky, B.N., Tishchenko, I.V., Chervov, V.V., et al., Sources for Productivity Gain in Vibro-Impact Driving of Steel Elements in Soil in Special Construction Technologies, J. Min. Sci., 2008, vol. 44, no. 5, pp. 490496.
3. Chervov, V.V., Tishchenko. I.V., and Smolyanitsky, B.N., Effect of Blow Frequency and Additional Static Force on the Vibro-Percussion Pipe Penetration Rate in Soil, J. Min. Sci., 2011, vol. 47, no. 1, pp. 8592.
4. Tupitsyn, K.K., K issledovaniyu mashin udarnogo deistviya s pnevmaticheskimi pulsatorami (Testing of Machines with Air-Driven Pulsators), Novosibirsk: IGD SO RAN, Preprint, 1980.
5. Lipin, A.A., Promising Pneumatic Punchers for Borehole Drilling, J. Min. Sci., 2005, vol. 41, no. 2, pp. 157161.
6. Smolyanitsky, B.N. and Chervov, V.V., Enhancement of Energy-Carrier Performance in Air Hammers in Underground Construction, J. Min. Sci., 2014, vol. 50, no. 5, pp. 918928.
7. Tishchenko, I.V. and Chervov, V.V., Influence of Energy Parameters of Shock Pulse Generator on the Pipe Penetration Velocity in Soil, J. Min. Sci., 2014, vol. 50, No. 3, pp. 491500.
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9. Chervov, V.V., Smolyanitsky, B.N., Trubitsyn, V.V., Chervov, A.V., and Tishchenko, I.V., RF patent no. 2462575, Byull. Izobret., 2012, no. 27.
10. Sudnishnikov, B.V., Esin, N.N., and Tupitsyn, K.K., Issledovanie i konstruirovanie pnevmaticheskikh mashin udarnogo deistviya (Analysis and Design of Pneumatic Percussive Machines), Novosibirsk: Nauka, 1985.
11. Gurkov, K.S., Klimashko, V.V., Kostylev, A.D., Plavskikh, V.D., Rusin, E.P., Smolyanitsky, B.N., Tupitsyn, K.K., and Chepurnoi, N.P., Pnevmoproboiniki (Air Rock Hammers), Novosibirsk: IGD SO RAN, 1990.

A. M. Krasyuk and P. V. Kosykh

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia

The article presents a calculation procedure for critical rotary speed of an axial main mine fan rotor. The calculations are made for fan model VO-21. The suppositions that make the calculations simpler without considerable errors of the results are evaluated. The calculations use the finite element method and ANSYS software. The critical rotary speeds are determined from the Campbell diagrams plotted for the estimates with and without regard for the stiffness of the bearing assemblies of the rotor. The effect exerted by the rotor bearing assembly stiffness and by the gyroscopic moment of the fan impeller on the frequency of free bending vibrations of the rotor shaft under direct and back precession is illustrated. The estimated critical rotary speeds are compared with the analytical data obtained based on discrete two-mass models. For the preliminary engineering estimation, it is possible to use a discrete two-mass model of the fan rotor without regard for the yielding of the bearing assemblies and for the influence of the gyroscopic model; in the design model, it is required to replace the transmission shaft by the point mass. The calculation error will not exceed 7%.

Fan, critical speed, precession, gyroscopic moment, bearing assembly yielding, equivalent load, Campbell diagram

DOI: 10.1134/S1062739116030730 

1. Construction Regulation Code SP 120.13330.2012. Subways, Moscow: Minregion Rossii, 2013.
2. Krasyuk, A.M., Tonnelnaya ventilyatsiya (Tunnel Ventilation), Novosibirsk: Nauka, 2006.
3. Kosykh, P.V., Krasyuk, A.M., and Russky, E.Yu., Influence of Train Piston Effect on Subway Fans, J. Min. Sci., 2014, vol. 50, no. 2, pp. 362370.
4. Beizelman, R.D., Tsypkin, B.V., and Perel, L.Ya., Podshipniki kacheniya: spravochnik (Rolling Bearings: Handbook), Moscow: Mashinostroenie, 1975.
5. Chermensky, O.N. and Fedotov, N.N., Podshipniki kacheniya: spravochnik-katalog (Rolling Bearings: HandbookCatalog), Moscow: Mashinostroenie, 2003.
6. Maslov, G.S., Raschet kolebanii valov: spravochnoe posobie (Calculation of Vibrations of Shafts: Reference Aid), Moscow: Mashinostroenie, 1968.
7. Timoshenko, S.P., Kolebaniya v inzhenernom dele (Vibrations in Engineering), Moscow: Mashinostroenie, 1985.
8. Podolsky, M.E. and Cherenkova, S.V., Nature and Conditions of Direct and Back Wobble of Rotors, Teor. Mekhaniz. Mashin, 2014, vol. 2, no. 1, pp. 2740.
9. Genta, G., Dynamics of Rotating Systems, New-York: Springer, 2005.
10. Babkov, I.M., Teoriya kolebanii (Theory of Vibrations), Novosibirsk: Nauka, 1968.
11. Samuelsson, J., Rotor Dynamic Analysis of 3D-Modeled Gas Turbine Rotor in ANSYS, Finspng: Linkoping University, 2009.
12. Feodosev, V.I., Soprotivlenie materialov (Strength of Materials), Moscow: MGTU Baumana, 1999.

Yu. M. Lekontsev, A. V. Patutin, P. V. Sazhin, and O. A. Temiryaeva

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia

The structural layout is presented for a hybrid unit for directional hydrofracturing with the description of operating principles of the unit in the mode of drilling and slotting. The kinematic parameters of the movable parts of the unit are calculated.

Directional hydrofracturing, drill hole, initiation slot

DOI: 10.1134/S1062739116030742 

1. Isakov, A.L., Directed Fracture of Rocks by Blasting, J. Min. Sci., 1983, vol. 19, no. 6, pp. 479488.
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9. Sazhin, P.V., Issledovanie traektorii dvizheniya rezhushchego organa shcheleobrazovatelya (Trajectory of a Cutting Tool of a Splitter), Gornyatsk. Smena, 2008, vol. 1, pp. 814.

S. V. Doronin and Yu. F. Filippova

Special Design and Technology Bureau Nauka,
Institute of Computational Technologies, Siberian Branch, Russian Academy of Sciences,
pr. Mira 53, Krasnoyarsk, 660049 Russia

A formalized approach is proposed to evaluating design loads on shovels with compound kinematic chains, based on numerical estimates of response of primary structural members to unit forces. The practical implementation of the approach uses structural layout of a mine shovel with electromechanical push-bars of pressure and uplift drives.

Loading case, shovel working attachment

DOI: 10.1134/S1062739116030754 

1. Peters, E.R., Osnovy teorii odnokovshovykh ekskavatorov (Theory of Shovels), Moscow: Mashgiz, 1955.
2. Volkov, D.P., Dinamika i prochnost odnokovshovykh ekskavatorov (Dynamics and Strength of Shovels), Moscow: Mashinostroenie, 1965.
3. Labutin, V.N., Mattis, A.R., and Zaitseva, A.A., Blast-Free Mining of Coal Seams by Excavators Equipped with Rotary Dynamic Buckets, J. Min. Sci., 2005, vol. 41, no. 2, pp. 143150.
4. Mattis, A.R., Labutin, V.N., Cheskidov, V.I., Zaitsev, G.D., and Kudryavtsev, V.G., Substantiation of the Capacity of Percussion Devices and Estimation of the Performance Capabilities for Active Bucket Excavator EKG-5V, J. Min. Sci., 2005, vol. 41, no. 5, pp. 467474.
5. Mattis, A.R., Zaitsev, G.D., Labutin, V.N., Cheskidov, V.I., and Tolmachev, A.V., Blast-Free Technology of Mineral Mining: State and Prospects. Part I: Experience of Study and Development of Excavators with the Dynamic Bucket, J. Min. Sci., 2004, vol. 40, no. 1, pp. 8491.
6. Labutin, V.N., Mattis, A.R., Zaitsev, G.D., and Cheskidov, V.I., Blast-Free Technology of Mineral Mining: State and Prospects. Part II: Estimation of the Efficiency of Various Failure Methods in Opencast Mining Technologies, J, Min. Sci., 2004, vol. 40, no. 2, pp. 173181.
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11. Salov, D.A. and Tumasyan, A.R., RF patent no. 2377457: MPK F16H25/22, F16H25/24, Byull. Izobret., 2009, no. 36.


A. A. Ordin and A. M. Timoshenko

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
VostNII Science Center,
ul. Institutskaya 3, Kemerovo, 650002 Russia

The authors give theoretical and actual evidence of reduction in absolute methane release under higher rates of advance of production face in coal mines. The parabolic relation between methane release, feed speed and productivity of cutterloader is evaluated.

Mine, coalbed, breakup, coal sizing, methane release, production face advance

DOI: 10.1134/S1062739116030766 

1. Ordin, A.A. and Timoshenko, A.M., Reduction of Coal Bed Methane Release under High-Rate Advance of Production Face, J. Min. Sci., 2015, vol. 51, no. 4, pp. 779784.
2. Timoshenko, A.M., Baranova, M.N., Nikiforov, D.V. et al., Application of Standards in High-Capacity Coal Mine Planning, Vestn. NTs VostNII, 2010, no. 1, pp. 1218.
3. Boiky, A.B., Effect of Coal Production rate on Greenhouse gas Emission in Roadways, Geotekhn. Mekh., 2010, issue 88, pp. 237255.
4. Grashchenkov, N.F., Petrosyan, A.E., Frolov, M.A., et al., Rudnichnaya ventilyatsiya: spravochnik (Mine Ventilation: Handbook), K. Z. Ushakov (Ed.), Moscow: Nedra, 1988.
5. Rukovodstvo po proektirovaniyu ventilyatsii ugolnykh shakht: proekt (Guidelines on Coal Mine Ventilation Planning: Draft), Moscow, 2010.
6. Rukovodstvo po proektirovaniyu ventilyatsii ugolnykh shakht: proekt (Guidelines on Coal Mine Ventilation Planning), Makeevka-Donbass, 1989.
7. Rukovodstvo po proektirovaniyu ventilyatsii ugolnykh shakht: proekt (Guidelines on Coal Mine Ventilation Planning), Kiev, 1994.
8. Instruktsiya po primeneniyu skhem provetrivaniya vyemochnykh uchastkov shakht s izolirovannym otvodom metana iz vyrabotannogo prostranstva s pomoshchyu gazootsasyvayushchihk ustanovok (Instructions on Extraction Panel Ventilation with Isolated Methane Recovery Gas Suction Plants), Federal Environmental, Industrial and Nuclear Supervision Service of Russia, Decree No. 680, 1 December, 2011.
9. Ordin, A.A., Timoshenko, A.M., and Kolenchuk, S.A., Ultimate Length and Capacity of Production heading with regard to gas Content, Considering Nonuniform Air Flow, J. Min. Sci., 2015, vol. 51, no. 4, pp. 771778.
10. Ordin, A.A. and Metelkov, 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. 254264.
11. Bronshtein, N.N. and Semendyaev, K.A., Spravochnik po matematike dlya inzhenerov i uchashchikhsya vuzov (Handbook of Mathematics for Engineers and University Students), Moscow: Nauka, 1986.
12. Zaburdyaev, G.S., Novikova, I.A., and Podobrazhin, A.S., Methane and Dust Emissions during Operation of Worm-Type Tools, GIAB, 2008, no. 53, pp. 5664.

V. S. Alekseev and R. S. Seryi

Institute of Mining, Far East Branch, Russian Academy of Sciences,
ul. Turgeneva 51, Khabarovsk, 680000 Russia

The experimental studies allow determining efficient parameters of a technology meant for formation of pay zones in gold mine waste dumps. The technology is applicable to developing gold mine waste early assumed unprofitable.

Gold mine waste, seepage flows, gold particle migration, pay zone formation

DOI: 10.1134/S1062739116030778 

1. Van-Van-E, A.P., Resursnaya baza prirodno-tekhnogennykh zolotorossypnykh mestorozhdenii (Gold Reserves in Natural Placers and Placer Mining Waste), Moscow: Gornaya Kniga, 2010.
2. Rasskazov, I.Yu., Litvintsev, V.S., and Mamaev, A.Yu., Reserves of Placer Mining Waste and Basic Trends of their Development, Zolotodobyv. Prom., 2011, no. 1, pp. 1420.
3. Litvintsev, V.S., Resource Potential of Placer Mining Waste, J. Min. Sci., 2013, vol. 49, no. 1, pp. 99105.
4. Mirzekhanov, G.S. and Mirzekhanova, Z.G., Resursnyi potentsial tekhnogennykh obrazovanii rossypnykh mestorozhdenii zolota (Resource Potential of Waste at Gold Placer Mines), Moscow: MAKS Press, 2013.
5. Alekseev, V.S., Substantiation of Rational Technology of Pay Zone Generation during Surface Development of Placer Mining Waste in the Amur Region, Cand. Tech. Sci. Dissertation, Khabarovsk, 2012.
6. Mamaev, Yu.A., Litvintsev, V.S., and Alekseev, V.S., Generation of a Pay Zone in Waste at Noble Metal Placers, Tikhookean. Geolog., 2012, vol. 31, no. 4, pp. 106112.
7. Litvintsev, V.S., Alekseev, V.S., and Pulyaevsky, A.M., Suffusion Processes in the Technology of Formation of Enriched Zones inside Gold Placer Mining Waste Dumps, J. Min. Sci., 2012, vol. 48, no. 5, pp. 914919.
8. Ternova, A.F., Gidravlika gruntovykh vod: ucheb. posobie (Underground Water Hydraulics: Educational Aid), Tomsk: TGASI, 2010.


V. A. Chanturia, G. P. Dvoichenkova, and O. E. Kovalchuk

Institute of Integrated Mineral DevelopmentIPKON, Russian Academy of Sciences,
Kryukovskii tupik 4, Moscow, 111020 Russia
ALROSA Research and Geological Exploration Company,
Chernyshevskoe shosse 16, Mirny, 678174 Russia

The analytical research has yielded differences in composition of mineral species on the surface of natural diamonds of hyperaltered kimberlites under conditions of diamond ore occurrence and processing. The classification of the mineral species is based on the mineral origin, properties and attachment on the diamond crystal surface.

Mineral species, diamond, kimberlite, hydrophilic behavior, hydrophobic behavior, classification

DOI: 10.1134/S106273911603079X

1. Chanturia, V.A., Trofimova, E.A., Dvoichenkova, G.P., Bogachev, V.I., Minenko, V.G., and Dikov, Yu.P., Theory and Practice of Electrochemical Water Treatment to Intensify Diamond-Containing Kimberlite Beneficiation, Gorn. Zh., 2005, no. 4, pp. 5155.
2. Chanturia, V.A., Trofimova, E.A., Dikov, Yu.P., Bogachev, V.I., Dvoichenkova, G.P., and Minenko, V.G., Mechanism for Passivation and Activation of Diamond Surface in Diamond Ore Processing, Obogashch. Rud, 1999, no. 6, pp. 1418.
3. Trofimova, E.A., Zuev, A.V., Dvoichenkova, G.P., and Bogachev, V.I., Efficiency of Diaphragm-Free Electrochemical Water Treatment in Processing of DiamondContaining Kimberlites, Razvitie idei. Plaksina v oblasti obogashcheniya poleznykh iskopaemykh i gidrometallurgii (Development of Plaksins Ideas in Mineral Processing and Hydrometallurgy), Moscow: Nats. Nauchn. Tsentr Gorn. Proizv.Gorn. Inst. Skoch., 2000.
4. Dvoichenkova, G.P., Minenko, V.G., Kovalchuk, O.E., etc., Intensification of Froth Separation of Diamond-Bearing Materials by Applying Electrochemical Aeration of Aqueous System, Gorn. Zh., 2012, no. 12, pp. 8892.
5. Chanturia, V.A. and Goryachev, B.E., Treatment of Diamond-Bearing Kimberlites, Progressivnye tekhnologii kompleksnoi pererabotki mineralnogo syrya (Progressive Techniques for Integrated Mineral Processing), Moscow: Ruda Metally, 2008, pp. 151163.
6. Chanturia, V.A., Trofimova, E.A., Dikov, Yu.P., Dvoichenkova, G.P., Bogachev, V.I., and Zuev, A.A., Relation between Diamond Surface and Diamond Processing Properties in Kimberlite Treatment, Gorn. Zh., 1998, nos. 1112, pp. 5256.
7. Kulakova, I.I., Chemistry of Nano-Diamond Surface, Fiz. Tverd. Tela, 2004, vol. 46, issue 4, pp. 621628. 8. Aleshin, V.G., Smekhnov, A.A., and Kruk, V.B., Khimiya poverkhnosti almaza (Chemistry of Diamond Surface), Kiev: Nauk. Dumka, 1990.
9. Chanturia, V.A., Trofimova, E.A., Bogachev, V.I., and Dvoichenkova, G.P., Mineral and Organic Nano-Species on Natural Diamonds: Conditions for Their Formation and Processes for Their Removal, Gorn. Zh., 2010, no. 7, pp. 6871.
10. Chanturia, V.A., Dvoichenkova, G.P., Kovalchuk, O.E., and Kovalenko, E.G., Alteration of Process Properties of Diamonds after Treatment of Re-Modified Kimberlites, Rudy Met., 2013, no. 3, pp. 4855.
11. Chanturia, V.A., Dvoichenkova, G.P., Kovalchuk, O.E., and Timofeev, A.S., Surface Composition and Role of Hydrophilic Diamonds in Foam Separation, J. Min. Sci., 2015, vol. 51, no. 6, pp. 12351241.
12. Dvoichenkova, G.P., Mineral Formations on Natural Diamond Surface and Their Destruction Using Electrochemically Modified Mineralized Water, J. Min. Sci., 2014, vol. 50, no. 4, pp. 788799.
13. Maksimovskii, E.A., Fainer, N.I., Kosinova, M.L., and Rumyantsev, Yu.M., Investigation into Structure of Fine Nanocrystalline Films, Zh. Strukt. Khim., 2004, vol. 45, pp. 6165.
14. Strickland-Constable, R.F., Kinetics and Mechanism of Crystallization, London and New York: Academic Press, 1968.

S. A. Kondratev, E. A. Burdakova, and I. A. Konovalov

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia

Under discussion is collectability of ethyl and butyl xanthate species resulted from non-stoichiometric interaction with oxidizer. It is visually proved that solution contains fine micro-drops stabilized by negative charge. The size and ζpotential of microdrops are determined together with the spreading velocity of emulsion over water surface. The mentioned velocity is higher than the spreading velocity of products of non-stoichiometric interaction between xanthate and heavy metal salt. The products of interaction between xanthates and oxidizers are known as desorbable species (DS), as at the moment of rupture of water film between mineral particle and air bubble they can detach from particle surface and attach to airwater interface. Spreading of DS over the interface forces water out of the film. The forces applied to liquid in the film from the side of DS of ethyl and butyl xanthates are evaluated. The volumeflow rate of water from the film is related with the surface pressure of reagent species active at the airwater interface. The surface pressure of dixanthogenxanthate emulsion is evaluated as a function on initial concentration of xanthate. Collectability of the reagent depends on the surface tension of DS solution and is governed by the structure of hydrocarbon fragment of the agent.

Flotation, flotation activity, dixanthogen emulsion, surface pressure, liquid film, physical adsorption, selectivity

DOI: 10.1134/S1062739116030801 

1. aggart, A.F., del Guidice, G. R. M., and Ziehl, O.A., The Case for the Chemical Theory of Flotation, Amer. Inst. Min. Metallurg. Petrol. Eng. Transactions, 1934, vol. 112, pp. 348381.
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9. Pritzker, M.D. and Yoon, R.H., Thermodynamic Calculations on Sulfide Flotation Systems: I. GalenaEthyl Xanthate System in the Absence of Metastable Species, Int. J. Min. Process., 1984, vol. 12.
10. Majima, H. and Takeda, M., Electrochemical Studies of the XanthateDixanthogen System on Pyrite, Amer. Inst. Min. Metallurg. Petrol. Eng. Transactions, 1968, vol. 241, pp. 431436.
11. Wang, X-H., Forssberg, K. S. E., Mechanisms of Pyrite Flotation with Xanthates, Int. J. Min. Process., 1991, vol. 33, pp. 275290.
12. Chanturia, V.A. and Vigdergauz, B.E., Elektrokhimiya sulfidov. Teoriya i praktika flotatsii (Electrochemistry of Sulfides. Theory and Practice of Flotation), Moscow: Nauka, 1993.
13. Zhang, Q., Xu, Z., Bozkurt, V., and Finch, J.A., Pyrite Flotation in the Presence of Metal Ions and Sphalerite, Int. J. Min. Process., 1997, vol. 52, pp. 187201.
14. Vucinic, D.R., Lazic, P.M., and Rosic, A.A., Ethyl Xanthate Adsorption and Adsorption Kinetics on Lead-Modified Galena and Sphalerite under Flotation Conditions, Colloids and Surface A: Physicochem. Eng. Aspects, 2006, vol. 279, pp. 96104.
15. Nowak, P., Xanthate Adsorption at PbS Surfaces: Molecular Model and Thermodynamic Description, Colloids and Surfaces A: Physicochem. Eng. Aspects, 1993, vol. 76, pp. 6572.
16. Wang, X., Forssberg, K. S. E., and Bolin, N.J., The Aqueous and Surface Chemistry of Activation in the Flotation of Sulphide MineralsA Review. Part II: A Surface Precipitation Model, Min. Process. Extract. Metall. Review, 1989, vol. 4, pp. 167199.
17. Kondratev, S.A., Moshkin, N.P., and Konovalov, I.A., Collecting Ability of Easily Desorbed Xanthates, J. Min. Sci., 2015, vol. 51, no. 4, pp. 830838.
18. Bulatovic, Srdjan M. Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores, Elsevier Science & Technology Books, 2007.
19. Finkelstein, N.P. and Allison, S.A., Natural and Induced Hydrophobicity in Sulphide Mineral Systems, Aiclhe Symposium Series, 1976, vol. 71, no. 150, pp. 165175.

T. N. Matveeva, N. K. Gromova, and L. B. Lantsova

Institute of Integrated Mineral DevelopmentIPKON, Russian Academy of Sciences,
Kryukovskii tupik 4, Moscow, 111020 Russia

The authors report studies into adsorption of tannin and cow-parsnip extract components on stibnite, arsenopyrite and chalcopyrite using UV spectroscopy, scanning laser microscopy and measurement of air bubble detachment from a mineral particle. It is found that tannin and organic reagents are selectively adsorbed on the surface of the listed sulfide minerals and exert selective effect on adsorption of sulfhydryl collecting agent, which, in its turn, may result in efficient recovery of the minerals in proper concentrates under complex gold ore flotation.

Complex gold ore, stibnite, arsenopyrite, chalcopyrite, tannin, plant extract, adsorption

DOI: 10.1134/S1062739116030813 

1. Solozhenkin, P.M., Process for Treatment of GoldAntimony Ores and Concentrates, in Chanturia, V.A., Progressivnye tekhnologii kompleksnoi pererabotki mineralnogo syrya (Advanced Integrated Raw Mineral Treatment), Moscow: Ruda Metally, 2008, pp. 112119.
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4. Somasundaran, P., Wang, J., Pan, Z., et al., Interactions of Gum Depressants with Talc: Study of Adsorption by Spectroscopic and Allied Techniques, Proc. 22nd. Min. Proc. Congress, Cape Town, South Africa, 2003, pp. 912919.
5. Chanturia, V.A., Ivanova, T.A., Matveeva, T.N., Gromova, N.K., and Lantsova, L.B., RF Patent no. 2397025, Byull. Izobr., 2010, no. 23.
6. Chanturia, V.A., Matveeva, T.N., Ivanova, T.A., Gromova, N.K., and Lantsova, L.B., New Complexing Agents to Select Auriferous Pyrite and Arsenopyrite, J. Min. Sci., 2011, vol. 47, no. 1, pp. 102108.
7. Beattie, D., Mierczynska-Vasilev, A., Kor, M., and Addai-Mensah, J., Polymer Depressant Adsorption Selectivity in Mixed Mineral Systems, Proc. 27th Min. Proc. Congress, Santiago, Chile, 2014, Book of Abstracts, vol. I.
8. Braga, P., Chaves, A., Luz, A., and Franca, S., Polymeric Depressants in Purification by Flotation of Molybdenite, Proc. 27th Min. Proc. Congress, Santiago, Chile, 2014, Book of Abstracts, vol. I.
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10. Goodwin, T.W. and Mercer, E.I, Introduction to Plant Biochemistry, Oxford: Pergamon, 1983, vol. 2.
11. Ivanova, T.A., Matveeva, T.N., Chanturia, V.A., and Ivanova, E.N., Composition of Multicomponent Heracleum Extracts and its Effect on Flotation of Gold-Bearing Sulfides, Journal of Mining Science, 2011, vol. 51, no. 4, pp. 819924.
12. Musikhin, I.M. and Sigaev, A.I., Investigation into Physical Properties and Chemical Composition of Sosnovsky Cow-Parship and Fiber Semi-Product Production from It, Sovrem. Naukoemk. Tekhn. Tekhnol. Nauki, 2006, no. 3, pp. 6567.
13. Matveeva, T.N., Gromova, N.K., and Koporulina, E.V., Analysis of Adsorption of Phytogenous Collecting Agents at the Gold-Containing Surface during Flotation, J. Min. Sci., 2015, vol. 51, no. 3, pp. 601608.
14. Matveeva, T.N., Gromova, N.K., Ivanova, T.A., and Chanturia, V.A., Physicochemical Effect of Modified Diethyldithiocarbamate in Sulfide Mineral Flotation from Sulfide Ores, Journal of Mining Science, 2013, vol.49, no. 5, pp. 803810.

T. S. Yusupov

Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Koptyuga 3, Novosibirsk, 630090 Russia
e-mail: yusupov@igm.nsc.ru

Under analysis is low efficiency of drum mills when dissociating higher strength aggregates of rebellious ore. It is shown that the main reason is insufficient destructive force. The structuralchemical characteristics of mineral aggregates and the role of defects in their dissociation are described. The author evaluates principles of estimating required energy input to dissociate aggregates composed of minerals with different types and values of interatomic and intermolecular bonds under high-power and high-velocity free impacts in disintegrators. By way of example, velocities of collision between minerals and disintegrator tools in dissociation of aggregates of sulfide and rare-metal ores and coal are given.

Ore, fine dissemination, minerals, aggregates, milling, disintegration, collision velocity, mineral interface strength, chemical bond, structural defect

DOI: 10.1134/S1062739116030825 

1. Chanturia, V.A., Innovative Techniques to Process Rebellious Mineral Materials, Geol. Rudnykh Mest., 2008, vol. 50, no. 6, pp. 558568.
2. Yusupov, T.S., Baksheeva, I.I., and Rostovtsev, V.I., Analysis of Different-Kind Mechanical Effects on Selectivity of Mineral Dissociation, J. Min. Sci., 2015, vol. 51, no. 6, pp. 12481253.
3. Sidenko, P.M., Izmelchenie v khimicheskoi promyshlennosti (Milling in Chemical Industry), Moscow: Khimiya, 1977.
4. Golosov, S.I., Concept of Fine Grinding and Centrifugal Planetary Mills, Mekhanokhimicheskie yavleniya pri sverkhtonkom izmelchenii (Mechanical and Chemical Phenomena in Superfine Grinding), Novosibirsk: SO AN SSSR, 1971, pp. 2340.
5. Yusupov, T.S. and Kondratev, S.A., Technological Restrictions and Negative Factors of Fine Ore Grinding in Drum Mills and Ways to Improve Selectivity of Dissociation, Proc. Conf. Machinery to Process Ore and Non-Metallic Materials. Mineral Processing Techniques, Novosibirsk: Sibprint, 2015, pp. 253259.
6. Ramdor, P., Rudnye mineraly i ikh srastaniya (Ore Minerals and Mineral Aggregates), Moscow: Inostr. Liter., 1962.
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8. Pirogov, B.I., Teoreticheskie osnovy tekhnologicheskoi mineralogii (Theoretical Fundamentals of Process Mineralogy), 1988, pp. 127134.
9. Khopunov, E.A., Selektivnoe razrushenie mineralnogo i tekhnogennogo syrya (Selective Disintegration of Mineral and Technogenic Materials), Ekaterinburg, 2013.
10. Thissen, P.A., Meyer, ., and Heinicke, G., Crundlagen der Tribochemie, Berlin: Verlag, 1966, no. 1.
11. Smolyakov, A.R., Mineral Intergrowth Boundaries in Ore, GIAB, 2007, no. 11, pp. 346353.
12. Kitel, Ch., Vvedenie v fiziku tverdogo tela (Introduction to Solid Body Physics), Moscow: Nauka, 1978.
13. Yusupov, T.S., Theory and Practice of Directed Alteration of Structure and Properties of Minerals in Fine Grinding, Thesis of Dr. Tech. Sci., Novosibirsk, 1988.
14. Golik, V.I., Metal Recovery from Mineral Processing, Rejects, Obogashch. Rud, 2010, no. 5, pp. 3840.
15. Aleksandrova T. N., Gurman, M.A., and Kondratev, S.A., Some Approaches to Gold Extraction from Rebellious Ores on the South of Russias Far East, J. Min. Sci., 2011, vol. 47, no. 5, pp. 684694.
16. Shadrunova, I.V., Ozhogina, E.G., Kolodezhnaya, E.V., and Gorlova O. E., Slag Disintegration Selectivity, J. Min. Sci., 2013, vol. 49, no. 5, pp. 831839.
17. Yusupov, T.S. and Burdukov, A.P., Metamorphism Influence on Grindability of Coals under Percussion Effect, Khim. Tverd. Tela, 2013, no. 4, pp. 206208.
18. Burdukov, A.P., Popov, V.I., Yusupov, T.S., Hanjalic, K., and Chernetskii, M.Y., Autothermal Combustion of Mechanically Activated Micronized Coal in A5 MW Pilot-Scale Combustor, Fuel, 2014, vol. 122.

A. G. Mikhailov, M. Yu. Kharitonova, I. I. Vashlaev, and M. L. Sviridova

Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences,
ul. Akademgorodok 50, Bld. 24, Krasnoyarsk, 660036 Russia

Experimental evaluation is given for mineral preconcentration in a bed of a sorption collector in percolation of low concentration useful components from aqueous solutions of salts. Sorption collectors represented by interlayers of lignite, peat, marble and vermiculite are included in an evaporation barrier installed in subsurface zone of rock mass aeration. Accumulation properties of such geochemical sorption barriers are examined. Migrating solution was aqueous solutions of salts of cobaltous and nickelous nitrates. It has been found feasible to shape beneficiation zones under up-going capillary permeation of the solutions through the sorption barriers in the zone of aeration in rock mass.

Geochemical sorption barrier, aqueous solution, permeation, concentration, aeration zone

DOI: 10.1134/S1062739116030837 

1. Mikhailov, A.G., Kharitonova, M.Yu., et al., Mobility of Water-Soluble Nonferrous and Precious Metals in Aged Mineral Processing Waste, J. Min. Sci., 2013, vol. 49, no. 3. pp. 514520.
2. Perelman, A.I., Geokhimiya landshafta (Landscape Geochemistry), Moscow: Geografizdat, 1961.
3. Perelman, A.I. and Kasimov, N.S., Geokhimiya landshaftov: ucheb. (Landscape Geochemistry: Textbook), Moscow: Astreya2000, 1999.
4. Bochkarev, G.R., Pushkareva, G.I., and Rostovtsev, V.I., Intensification of Ore Concentration and Sorption Extraction of Metals from Technogenic Raw Material, J. Min. Sci., 2007, vol. 43, no. 3. pp. 331340.
5. Izotov, A.A., Koverdyaev, O.N., and Vershinina, O.O., Ways to Reduce Drainage Water Impact on Environment in Mining Areas, Gorny Zh., 2006, no. 10, pp. 103106.
6. Kaimin, E.P., Zakharova, E.V., Konstantinova, L.I., Zubkov, A.A., and Danilov, V.V., Silicic Acid Use as Impermeable Membrane in Sand Level, Geoekologia, 2007, no. 2, pp. 137142.
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V. N. Oparin, T. A. Kiryaeva, V. Yu. Gavrilov, Yu. Yu. Tanashev, and V. A. Bolotov

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Lavrentieva 5, Novosibirsk, 630090 Russia
Novosibirsk State University,
ul. Pirogova 2, Novosibirsk, 630090 Russia

Porous structure parameters of different rank Kuzbass coal and gas- and mass-exchange processes under coal heating are analyzed. The main part of volatile matter is dissolved in the volume of coal beds. For all coal specimens, it is typical that mass fraction of methane and ethane decreases with temperature while mass fraction of hydrogen, carbonic oxide and ethane increases. The latter gases can be the sources of violent burning of coal beds. UHF pyrolysis of bituminous coal reveals physical balance and composition of gaseous products. The results permit coal rating based on carbonization, enable recommending the use of inert gases in underground fire fighting and allow estimating temperature level in fire source zones in coal beds based on chemical composition of emitted gases.

Coal outburst- and fire-hazard, coal, porosity, temperature, volatile yield, ranks, mass- and gas-exchange processes, chemical composition

DOI: 10.1134/S1062739116030850 

1. Adushkin, V.V. and Oparin, V.N., From the Alternating-Sign Explosion Response of Rocks to the Pendulum Waves in Stressed Geomedia, Part I, J. Min. Sci., 2012, vol. 48, no. 2, pp. 203222.
2. Adushkin, V.V. and Oparin, V.N., From the Alternating-Sign Explosion Response of Rocks to the Pendulum Waves in Stressed Geomedia, Part II, J. Min. Sci., 2013, vol. 49, no. 2, pp. 175209.
3. Adushkin, V.V. and Oparin, V.N., From the Alternating-Sign Explosion Response of Rocks to the Pendulum Waves in Stressed Geomedia, Part III, J. Min. Sci., 2014, vol. 50, no. 4, pp. 623645.
4. Oparin, V.N., Pendulum Waves and Geomechanical Temperature, Proc. Second RussianChinese Sci. Conf. Nonlinear Geomechanical-Geodynamic Processes in Deep Mining, Novosibirsk: IGD SO RAN, 2012, pp. 1319.
5. Oparin, V.N., Kiryaeva, T.A., Gavrilov, V.Yu., Shutilov, R.A., Kovchavtsev, A.P., Tanaino, A.S., Efimov, V.P., Astrakhantsev, I.E., and Grenev, I.V., Interaction of Geomechanical and Physicochemical Processes in Kuzbass Coal, J. Min. Sci., 2014, vol. 50, no. 2, pp. 191214.
6. Oparin, V.N., Kiryaeva, T.A., Usoltseva, O.M., Tsoi, P.A., and Semenov, V.N., Nonlinear Deformation-Wave Processes in Various Rank Coal Specimens Loaded to Failure under Varied Temperature, J. Min. Sci., 2015, vol. 51, no. 4, pp. 641658.
7. Khodot, V.V., Yanovskaya, M.F., Premysler, Yu.S., et al., Fizikokhimiya gazodinamicheskikh yavlenii v shakhtakh (Physics and Chemistry of Gas-Dynamic Phenomena in Mines), Moscow, 1973.
8. Dubinin, M.M. and Onusaitis, B.A., Porous Structure Parameters of Rational-Range Commercial Activated Carbon, Uglerodnye adsorbenty i ikh primenenie v promyshlennosti (Carbon Adsorbents and Their Industrial Use), Perm, 1969, pp. 325.
9. Bobin, V.A., Sorbtsionnye protsessy v prirodnom ugle i ego struktura (Sorption in Mineral Coals, Coal Structure), Moscow: IPKON AN SSSR, 1987.
10. Ettinger, I.L. and Shulman, N.V., Raspredelenie metana v porakh iskopaemykh uglei (Methane Distribution in Mineral Coal Pores), Moscow: Nauka, 1975.
11. Vengerov, I.R., Teplofizika shakht i rudnikov. Matematicheskie Modeli (Thermophysics of Mines. Mathematical Models), vol. 1, Donetsk: Nord Press, 2008.
12. Kiryaeva, T.A. and Melgunov, M.S., Preliminary Data on State-of-the-Art Investigation into Coal Structure, GIAB, Special issue no. 7, Kuzbass-1, 2009, pp. 155160.
13. Malyshev, Yu.N., Trubetskoy, K.N., and Airuni, A.T., Fundamentalno-prikladnye metody resheniya problem ugolnykh plastov (Fundamental and Applied Techniques to Solve Coal Bed Problem, Moscow: IAGN, 2000.
14. Iskhakov, Kh.A., Activation of Methane Explosion Components by their Sorption at Surface of Coal Dust, TEK i resursy Kuzbassa (Fuel and Energy Complex and Kuzbass Mineral Resources), 2006, no. 2, pp. 5557.
15. Kalyakin, S.A., Ideology of Explosive Safety at Coal Mines Hazardous in Gas and Coal Dust, Bezopasn. Tr. Prom., 2010, no. 11, pp. 3841.
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18. Oparin, V.N., Kiryaeva, T.A., Gavrilov, V.Yu., and Shutilov, R.A., On Genetic Relation between Outbursts and Fire Hazard of Kuzbass Coal Beds, Proc. Int. RussiaKazakhstan Symposium Coal Chemistry and Ecology in Kuzbass, Kemerovo: Inst. Ugl. Khim Khim Mater. SO RAN, 2014.
19. Oparin, V.N. and Kiryaeva, T.A., Genetics of Outbursts and Fire Hazard of Kuzbass Coal Beds, GIAB, 2015, no. 3, pp. 400413.

Yu. A. Khokholov, A. S. Kurilko, and D. E. Solovev

Chersky Institute of Mining of the North, Siberian Branch, Russian Academy of Sciences,
pr. Lenina 43, Yakutsk, 677980 Russia

The 3D mathematical model of temperature conditions in salty rock mass at shaft mouth takes into account parameters and modes of freezing unit operation, temperature of ambient air and air in the shaft, as well as nonuniformity and rate of salinity of enclosing rocks. The model allows dynamics of temperature variation in rocks around the shaft and load-bearing capacity of each pole of head frame foundation depending on rock mass temperature and salinity. Different variants of freezing unit operation are considered to select the variants to ensure the required load-bearing capacity of the head frame poles and the diamond shaft lining safety.

Mathematical modeling, permafrost, heat exchange, shaft, salty rocks, freezing unit, load-bearing capacity, pole

DOI: 10.1134/S1062739116030862 

1. Construction Norm and Regulations 2.02.04–88. Osnovaniya i fundamenty na vechnomerzlykh gruntakh (Bases and Foundations on Permafrost Ground), Moscow: Gosstroi SSSR, 1990.
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8. Shcherban, A.N., Kremnev, O.A., and Zhuravlenko, V.Ya., Rukovodstvo po regulirovaniyu teplovogo rezhima shakht (Manual on Temperature Field Regulation in Mines), Moscow: Nedra, 1977.
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M. V. Kaimonov and S. V. Panishev

Chersky Institute of Mining of the North, Siberian Branch, Russian Academy of Sciences,
pr. Lenina 43, Yakutsk, 677980 Russia

The article discusses the case study of temperature behavior prediction in permafrost rock mass before and after blasting at Kangalass lignite deposit. It is illustrated how the blasting period is related with the temperature behavior in the disintegration of broken rocks. The results are the basis to predict dragline productivity in different seasons and to select efficient scheme for blasted rock removal.

Open pit mine, permafrost, adfreezing, rock mass temperature, dragline, mathematical modeling

DOI: 10.1134/S1062739116030874 

1. Kurilko, A.S. and Kaimonov, M.V., On Secondary Mineral Material Adfreezing at North Operating Mines, GIAB, 2005, Yakutiya Issue no. 3, pp. 290297.
2. Galyanov, A.V., Rozhdestvensky, V.N., and Blinov, A.N., Transformatsiya struktury gornykh massivov pri vzryvnykh rabotakh na karerakh (Transformation of Rock Mass Structure under Blasting at Open Pit Mines), Ekaterinburg: IGD UO RAN, 1999.
3. Tikhonov, A.N. and Samarsky, A.A., Uravneniya matematicheskoi fiziki (Mathematical Physics Equations), Moscow: Nauka, 1977.
4. Pavlov, A.V. and Olovin, B.A., Iskusstvennoe ottaivanie merzlykh porod teplom solnechnoi radiatsii pri razrabotke rossypei (Artificial Rock Melting by Solar Radiation Heat in Alluvial Mining), Novosibirsk: Nauka, 1974.
5. Perlshtein, G.Z., Vodno-teplovaya melioratsiya merzlykh porod na severo-vostoke SSSR (Water-Thermal Melioration of Frozen Rocks in North-Eastern Areas of the USSR), Novosibirsk: Nauka, 1979.
6. Gavrilev, R.I., Teplofizicheskie svoistva komponentov prirodnoi sredy v kriolitzone (Thermophysical Properties of Nature Components in Permafrost Zone), Novosibirsk: SO RAN, 2004.
7. Samarsky, A.A., Teoriya raznostnykh skhem (Theory of Difference Schemes), Moscow: Nauka, 1983.
8. Panishev, S.V., Ermakov, S.A., and Kaimonov, M.V., Investigation into Influence of Temperature Regime of Blasted Permafrost Rocks on Dragline Productivity at Kangalass Open Pit Mine, GIAB, 2010, no. 7, pp. 146150.
9. Panishev, S.V. and Ermakov, S.A., Temperature Effect on Stripping in Permafrost Zone, J. Min. Sci., 2013, vol. 49, no. 2, pp. 279283.
10. Panishev, S.V., Ermakov, S.A., Kaimonov, M.V., Kozlov, D.S., and Maksimov, M.S., Complex Temperature Monitoring of Permafrost Rocks at Kangalass Open Pit Mine, GIAB, 2013, no. 9, pp. 6269.


S. V. Serdyukov, T. V. Shilova, and L. A. Rybalkin

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Krasnyi pr. 54, Novosibirsk, 630091 Russia

A down-the-hole device has been designed for gas dynamics analysis in coal. The device is manufactured based on the layout of a straddle packer with an adjustable interval. The device design is suitable for hydrofracturing and gas dynamics researches using the methods of indicator diagrams and pressure buildup and drawdown curves in package with relaxation of coal and rock mass by means of radially symmetric loading of hole walls in the hydrofracture interval.

Coal bed, hole, gas dynamics analysis, hydrofracturing, down-the-hole device

DOI: 10.1134/S1062739116030886 

1. Uskov, A.V. and Voitov, M.D., Directional Hole Drilling for Premine Coal Drainage, Vestn. KuzGTU, 2010, no. 3, pp. 3334.
2. Bolshinsky, M.I., Lysikov, A.B., and Kaplyukhin, A.A., Gazodinamicheskie yavleniya v shakhtakh (Gas-Dynamic Events in Mines), Sebastopol: Veber, 2003.
3. 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. 51, no. 4, pp. 860864.
4. Shkuratnik, V.L. and Nikolenko, P.V., Metody opredeleniya napryazhenno-deformirovannogo sostoyaniya massiva gornykh porod: nauch.-obrazovat. kurs (Methods to Determine Stress State of Rocks: Education and Research Course), Moscow: MGGU, 2012.
5. 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. 290296.
6. Serdyukov, S.V., Patutin, A.V., Shilova, T.V. et al., Metodika kompleksnykh geofizicheskikh skvazhinnykh issledovanii gazonosnykh ugolnykh plastov: otchet o NIR (Procedure for Integrated Geophysical Borehole Surveys in Gaseous Coal Beds: R&D Report), Novosibirsk: 2013.
7. Feldman, E.P., Vasilenko, T.A., and Kalugina, N.A., Physical Kinetics of CoalMethane System: Mass Transfer, Pre-Outburst Events, J. Min. Sci., 2014, vol. 50, no. 3, pp. 448464.

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