Mining informational and analytical bulletin. №1/2016

TITUL PAGES
INFORMATION
СONTENT

MINING WORLD





TECHNICAL SCIENCE

P. 5-9

BOLOBOV V. I., CHUPIN S. A.
TO IMPROVE THE STRENGTH CHARACTERISTICS OF BUILDINGS CUTTERS CUTTERS USING THE METHOD OF EQUAL CHANNEL ANGULAR PRESSING


National Mineral Resource University «University of Mines», 199106, Saint-Petersburg, Russia.
Bolobov V. I., Doctor of Technical Sciences, Professor, e-mail: Boloboff@mail.ru,
Chupin S. A.1, Graduate Student, e-mail: Staseg-88@mail.ru

Influence of grain size on the mechanical and performance properties of metallic materials is analyzed. Methods for grain refining – equal channel angular extrusion (ECAE) is reviewed in the article. The method of equal channel angular pressing is described. Influence of ECAE on mechanical properties is investigated. The experiment of ECAE and conclusions about influence of compression on mechanical properties of metals are made.
Key words:
grain metal, mechanical properties, wear resistance, tangential cutters, equal channel angular pressing.

P. 10-23

GAMOV M. I., NASTAVKIN A. V., VYALOV V. I.
RESULTS OF USING SCANNING ELECTRON MICROSCOPY FOR ANALYSIS OF MINERAL MATTER IN COAL


Southern Federal University, Institute of Earth Sciences, 344090, Rostov-on-Don, Russia.
Gamov M. I., Doctor of Geological and Mineralogical Sciences, Professor,Head of Chair, e-mail: kpirgu@mail.ru,
Nastavkin A. V., Candidate of Geological and Mineralogical Sciences, Assistant Professor, e-mail: nastavkin@sfedu.ru,
Vyalov V. I., Doctor of Geological and Mineralogical Sciences, Head of Department, A.P. Karpinsky Russian Geological Research Institute (VSEGEI), 199106, Saint-Petersburg, Russia

Analysis of mineral matter in coal have a great importance both for understanding of their genesis, and for the solution of various practical tasks. This article shown the results of using scanning electronic microscopy (SEM) for studying of mineral matter of coal. SEM allows to identify features of a microstructure of coals compounds, their anatomy and petrographic features, structure of a mineral matrix. We display the restrictions of traditional coal-petrographic methods which are capable to definite some types of mineral matter: clay minerals, iron sulfides, carbonates, oxides of silicon and other mineral compounds. In addition to these techniques application we recommend using of SEM combined with power-dispersive microanalysis for research coals compounds and their mineral components. It is an operational and reliable method of diagnostics of mineral components of coal. Microphotographs of kaolinite, hydromica, pyrite, calcite, quartz, biotite, feldspar, chalcopyrite, native sulfur, halite, galenite, hematite, apatite, barite, rutile and some other minerals as a part of coal organic matter are given. A number of microphotographs of minerals is followed by their power ranges.
Key words:
coal, mineral matter, coal petrology, electron microscopy, trace elements, organic petrology, coal petrography.

P. 24-37

DMITRIEV V. G., SERGEEVA N. V., IVANOV N. YU.
TRACTION CALCULATION TUBULAR BELT CONVEYOR WITH CURVED SPATIAL ALIGNMENT


Mining Institute, National University of Science and Technology «MISiS», 119049, Moscow, Russia, e-mail: ud@msmu.ru.
Dmitriev V. G., Doctor of Technical Sciences, Professor,
Sergeeva N. V., Candidate of Technical Sciences,
Ivanov N.Yu., Graduate Student

Considered are the issues of traction calculation tubular belt conveyor whose path includes straight and curved portions. For curved sections of the tracks due to the possible torsion of the trajectory adopted a spiral trajectory, as well as curvilinear motion of the tape in the vertical plane is convex up and down with a constant radius of curvature. Defined additional load on the rollers caused by the tension of the band bending on raichoor. Given these loads are defined separate portions of the total resistance force depending on the type of route angularity: component from the rotation of the roller, component by pressing the rollers in the tape component from the deformation of the load and ribbons, as well as the total resistance force on a single raichoor. Composed of a nonlinear differential equation for the tension change along the length of the curved portion, a solution is proposed numerical method with use of the computer. In the resulting expression for the resistance movement on a curved area taken into account: the type of tape and its characteristics, the type of rollers, the initial tension of the tape, the type of cargo, the characteristic of the curved portion of the track, etc.
Key words: tubular belt conveyor, traction calculation, the tension, the curved area, idler.

P. 38-48

EREMENKO YU. I., POLESHCHENKO D. A., GLUSHCHENKO А. I., POZHARSKIY YU. M.
ABOUT THE OPPORTUNITY OF WET SELF-GRINDING MILL FILLING DEGREE EVALUATION AS A RESULT OF NEURAL NETWORK SPECTRUM ANALYSIS OF ITS PIN VIBROACCELERATION SIGNAL


Stary Oskol Technological Institute named after A.A. Ugarov, National University of Science and Technology «MISiS» branch, 309530, Stary Oskol, Russia, e-mail: 451222@sf-misis.ru.
Eremenko Yu. I., Doctor of Technical Sciences,
Poleshchenko D. A., Candidate of Technical Sciences,
Glushchenko А. I., Candidate of Technical Sciences,
Pozharskiy Yu. M., Candidate of Technical Sciences,

The question about modern intelligent information processing methods usage for ball mill filling degree evaluation is considered. Vibroacceleration signal has been measured on a semi-industrial mill for that purpose under the conditions of different ball loading. It is made with accelerometer, attached to a mill pin. A training set for a neural network is formed with the help of spectral analysis methods, applied to the obtained signal. Trained neural network is able to find the correlation between mill pin vibroacceleration signal and mill filling degree. It is found that the neural network is much more insensitive to noise disturbance, caused by ball loading change, for ball mill filling estimation in comparison with vibro-acoustic analyzer.
Key words:
mill feeling degree, acceleration gage, spectral analysis, wet self-grinding mill, vibroacceleration, neural network, neural network training.

P. 48-56

EFIMENKO S. V., MERZLYAKOV M. YU., KLAVDIEV A. A., TRUSHNIKOV V. E.
DEVELOPMENT OF CONCEPT OF METHOD OF ACCELERATED EXPERIMENTS TO FIND A GROUTING COMPOSITION MIXES FOR BUILDING WELLS IN PERMAFROST


National Mineral Resource University «University of Mines», 199106, Saint-Petersburg, Russia.
Efimenko S. V., Assistant, e-mail: falcon.sergey@yandex.ru,
Merzlyakov M. Yu., Assistant, e-mail: merzlyackov.mihail@yandex.ru,
Klavdiev A. A., Candidate of Technical Sciences, Assistant Professor, e-mail: kss1959@mail.ru,
Trushnikov V. E., Doctor of Technical Sciences, e-mail: tvye@yandex.ru

Construction of wells diamondiferous deposits in Yakutia are many challenges. Due to complicated climatic and geological conditions are often complications arise, entailing an accident, the elimination of which requires the growth of material and time costs. The proposed method of process optimization experiments on the formation of mixtures to minimize the risks of complications of the above, first of all – by creating reliable plugging mixtures for lining wells.
Key words:
reverse freezing, thawing permafrost, drainage flow, subpermafrost aquifers, sealing the annulus grouting mixture permafrost, systematic and analytical methods, models and plans for experiments.

P. 57-67

ZEMLYANOY M. A., RAZORENOV YU. I., ZEMLYANOY S. A., ZEMLYANOY V. M.
VALIDATION OF OPERATING REGIME IN CHALK CLAY MINING IN THREE DIRECTIONS LATERALLY AND DEPTHWARDS (FOR EXAMPLE, NOVOROSSIYSK CHALK CLAY DEPOSIT)


Zemlyanoy M. A., Candidate of Technical Sciences, Doctoral Candidate,
Platov M. I., South-Russian State Polytechnic University (NPI), 346428, Novocherkassk, Russia,
Razorenov Yu. I., Doctor of Technical Sciences, Professor, Acting Rector, North Caucasus Mining-and-Metallurgy Institute (State Technological University), 362021, Vladikavkaz, Republic of North Ossetia-Alania, Russia,
Zemlyanoy S. A., Candidate of Technical Sciences, Assistant of Chair, Institute of Power Engineering and Mechanical Engineering, Don State Technical University, 344023, Rostov-on-Don, Russia,
Zemlyanoy V. M., Engineer, Gidrostroi Design and Construction Company LLC, Novorossiysk, Russia.

Justification of the mode of mining operations on a mountain field of marl in the conditions of preparation of stocks by means of adits in borders of the mining block is executed. In a working zone of a pit form the mining blocks allowing to extract mineral of the set quality and in necessary volume. Upon termination of working off of the first block there is an opportunity to fulfill stocks in three directions in the plan and for the direction in deepening. Management of the mode of mining operations allows to increase dynamics of working off of stocks, allows to reach an operational variation pit productivity on the extracted mineral, and also increases intensity of mining operations due to concentration of the mountain equipment on mining blocks of working off.
Key words:
mine operating regime, extraction block, mining front advance direction, mining dynamics, mining schedule.

P. 68-76

KLAVDIEV A. A., TRUSHNIKOV V. E., GARANIN D. A.,EFIMENKO S. V., VDOVIN O. V.
INFORMATION AND STATISTICAL METHODS OF THE ASSESSMENT OF EFFICIENCY OF INVESTMENT PROJECTS


Klavdiev A. A.1, Candidate of Technical Sciences, Assistant Professor, e-mail: kss1959@mail.ru,
Trushnikov V. E.1, Doctor of Technical Sciences, Professor, e-mail: tvye@yandex.ru,
Garanin D. A.2, Candidate of Economical Sciences, Assistant Professor, e-mail: garanin@kafedrapik.ru,
Efimenko S. V.1, Assistant, e-mail: falcon.sergey@yandex.ru,
Vdovin O. V.2, Assistant, e-mail: ovvdovin@yandex.ru,
1 National Mineral Resource University «University of Mines», 199106, Saint-Petersburg, Russia,
2 Peter the Great St.-Petersburg Polytechnic University, Saint-Petersburg, Russia.

In article various statements and approaches to the solution of a task on estimates of efficiency of investment projects taking into account various information security are offered. The analysis of the following productions: stochastic averaging of income, taking into account the dynamics of supply and demand, statistical formulation.
Key words:
income, demand, efficiency, entropy, system of mass service, information.

P. 77-87

KUZNETSOV YU. N., STADNIK D. A., STADNIK N. M., VOLKOVA YU. V.
THEORETICAL BASES OF FORMATION AND IMPLEMENTATION OF TARGETED-ORIENTED INFORMATION BASE FOR AIDED DESIGN PROCESS OF MINE


National University of Science and Technology «MISiS», 119049, Moscow, Russia.
Kuznetsov Yu. N., Doctor of Technical Sciences, Professor,
Stadnik D. A., Candidate of Technical Sciences, Assistant Professor, e-mail: denstadnik@rambler.ru,
Stadnik N. M., Applicant, e-mail: kun17@yandex.ru,
Volkova Yu. V., Student, e-mail: volkovayuv@bk.ru,

Proposed to implement the search process and the justification of rational design solutions for mining of the coal mine’s reserves on the basis of formation of the complex technical specifications for the design based on existing geological information with all regulatory requirements. Recommended as a method of providing interactive communication to use the creation of a common information database, which allows to consider each project targeted and to take into account all the necessary information for a specific coal field.
Key words:
computer-aided mine design, information base, regulatory framework, geological base.

P. 88-95

SHABAROV A. N., ABRAMOV M. YU.
OBJECTIVES FOR DEVELOPMENT OF TEST BENCH FOR PROJECTION METER


National Mineral Resource University «University of Mines», Scientific Center for Geomechanics and Mining Problems, 199106, Saint-Petersburg, Russia
Shabarov A. N., Doctor of Technical Sciences, Director,
Abramov M. Yu., Graduate Student

The author addresses the issue of resuming research in the field of development of projection meters using advanced technologies. The need for a lab test bench is substantiated. The main objective for the test bench design is formulated as the presence of geometrical elements (points, axes, planes) matchable with geometrical elements of projection meter. The classification of geometrical elements and the requirements for their ratio are developed for the projection meters and the test bench.
Key words:
projection meter, height mark transmission, connection survey, modernization, electronic vertical sensing unit, laboratory test bench, geometrical elements.

P. 96-105

LEVENSON S. YA., GENDLINA L. I., MOROZOV A. V., USOLTSEV V. M.
IMPROVEMENT OF DUMPING IN OPEN PIT MINING


Chinakal Institute of Mining of Siberian Branch of Russian Academy of Sciences, 630091, Novosibirsk, Russia
Levenson S. Ya., Candidate of Technical Sciences, Head of Laboratory, e-mail: lev@misd.nsc.ru
Gendlina L. I., Candidate of Technical Sciences, Senior Researcher,
Usoltsev V. M., Researcher,
Morozov A. V., Researcher, e-mail: alex02@ngs.ru

Dumping is one of the basic processes in open pit mining. As open pit mine gets deeper, amount of overburden grows. Stripping can be intensified with higher capacity mining and handling equipment, but it is sometimes impossible to employ such equipment due to its heavy weight. Operating conditions become un-safe because of low strength and stability of a dump. The paper shows that the indicated problem is resolvable by means of arranging truck dump areas beyond the boundaries of a probable failure wedge, which is achieved in dumping with the self-propelled vibrating stacker designed at the Chinakal Institute of Mining, SB RAS. Furthermore, safety of dumping can be enhanced by increasing the dump stability. To this effect, it is proposed to compact dump rocks by the purpose-designed vibrating machine. Optimized safety conditions for operation of large dump trucks are provided by joint use of the spreading and compacting vibrating machines. Application of the proposed equipment enables safe and efficient overburden handling in stripping at deep levels in open pit mines.
Key words:
dump, safety, vibrating feeder, efficiency, dump body stability, vibrating stacker.

P. 106-113

MOLDAGOZHINA M. K.
SELF-PROPELLED MACHINE FOR TRANSPORTATION AND APPLICATIONOF SHOTCRETE MIXTURE ON THE MINE WORKING SURFACE


Moldagozhina M. K., Master, Doctoral, e-mail: m.mako_81@mail.ru,
Kazakh National Technical University named after K.I. Satpayev, 050013, Almaty, Kazakhstan.

The article provides the information about the Kazakh scientists’ new developments in the field of mine working lining, as well as various means of lining. There is an analysis of a mechanization level of a mine working lining as well. A new design of a combined yielding lining with adjustable load-bearing strength based on new means of mechanization has been developed by the Kazakh scientists with the participation of the author. The proposed engineering solution enables to make complex mechanization of the lining process.
The article gives us some information on the means of transportation and application of shotcrete mixture, and proposes a new design of a combined yielding lining with adjustable load-bearing strength.
Key words:
shotcrete, anchor, lining, excavation, mining machinery, drilling, shot hole, wells, loading, rock, beam.

P. 114-121

NAZINA K. S.
INNOVATIVE REGIONAL CLUSTERS SUCH AS PRIORITY AREAS FOR DEVELOPMENT INDUSTRY IN RUSSIAN FEDERATION


Nazina K. S., Graduate Student, e-mail: Knazina@gmail.com,
National University of Science and Technology «MISiS», 119049, Moscow, Russia.

The article considers the concept of territorial innovation clusters and the process of forming of cluster initiatives in the Russian Federation. Conducted analysis the current situation on the world coal market, as well as the Concept of long-term socio-economic development of the Russian Federation for the period up to 2020 allowed the author to prove the relevance of the cluster approach in the development of industry in Russia. For today the priority areas of the industry economy as a whole is innovation, improving the competitiveness of industry and the transition to a new model of spatial development. Cluster policy allows to implement all of these areas, as it helps increase competitiveness through the effective interaction of participating enterprises cluster, aimed at the development of innovative, industrial, transport and energy infrastructure.
Kuzbass is the center of the Russian coal industry, and has manufacturing, research and human resources for the implementation of the cluster policy. Approved in December 2012 the program of development of innovative territorial cluster «Integrated processing of coal and industrial waste» in the Kemerovo region allow to change technological platform of the coal industry, thus, to remove existing today limit the development of the industry, and as a result, to form a fundamentally new type of Russian economic activity derived from coal products with high added value.
Key words:
territorial innovation clusters, Russian industry, cluster in Kemerovo region.

P. 122-134

PENS I. SH., IGOSHKINA L. V.
THE BOARD OF DIRECTORS IN CORPORATE GOVERNANCE: THE RUSSIAN PRACTICE AND INTERNATIONAL STANDARDS


Pens I. Sh., Doctor of Economical Sciences, Professor, Chief Researcher, e-mail: igorpens@mail.ru, TsNIEIugol, 119071, Moscow, Russia,
Igoshkina L. V., Candidate of Economical Sciences, Corporate Secretary, e-mail: igla12@list.ru,
State Unitary Enterprise «Medical Center» Administration of the Mayor and the Moscow Government, 117335, Moscow, Russia.

The article deals with the problem of improving corporate governance and its effectiveness against a background of megatrends external and internal factors of the company. The various aspects of the main component of Corporate Governance Board of Directors that affect the quality of their activities, including: the structure of the Board, its quantitative composition, gender composition, the presence on the board of independent directors and the duration of their stay on the board, members of the Board of Directors in the organs corporate governance of other companies, and so on. d. For each of the above aspects of the Board of Directors is given the actual state and international best practices, including the practice of companies in the UK, as reflected in the «UK Corporate Governance Code, 2010».The main attention is paid to the quality of the activities of the Board Directors emphasized,, in particular: the view of many experts on the need to limit the duration of stay in the Board of Directors in order to prevent their «growing» in the company, the need for restrictions on the work of members of boards of directors in corporate governance bodies of other companies due to the constant growth of complexity and the importance of the issues involved and the need to devote enough time to his work on the board. Emphasize the usefulness in the assessment of the Board of Directors. in addition to the self-assessment format. The opinions of external experts, adding value and objectivity to the process. It is expected that the interest in carrying out an independent evaluation of the Board of Directors will continue to grow because of the need to comply with the new Russian Code of Corporate Governance (2014). Improving corporate governance and the board of directors is given as an example of AFK «Sistema» jumping on the model operating holding a model of the investment company, which increased the role of boards of directors of the corporation, its subsidiaries and affiliates, the objectives of which were increased efficiency, flexibility and the reasonableness of investment decisions. In this connection, optimize the organizational structure of the holding, created new divisions, departments and functional complexes. The Board of Directors increased the number of independent directors, improved system of internal control and audit, implemented a risk management system integration.
Key words:
corporate governance, the board of directors, composition, performance assessment, the independent directors of the Board, a comparison of its operation with international standards.

P. 135-138

PIKINA E. V., CHIBINEV N. N., CHIBINEV K. N., SHMAT’KO M. E.
BASIC REQUIREMENTS FOR SOFTWARE OF ROBOT RESCUERS


South-Russian State Polytechnic University (NPI), 346428, Novocherkassk, Russia
Pikina E. V., Student,
Chibinev N. N., Candidate of Technical Sciences, Assistant Professor,
Chibinev K. N., Magister,
Shmat’ko M. E., Student, e-mail: maksim.shmatko.94@mail.ru

The article gives the statistics of accident rates in mines in Russia and the feature of the exogenous emergency response. The need of mine rescue robots in case of mine accidents is substantiated and the basic requirements for software for such robots are formulated.
Key words:
software, mine rescue robot, basic characteristics and functions of mine rescue robots, usage effect.

P. 139-148

PONOMARENKO YU. V., POPOV L. N., STRELTSOV V. I.
NEW TECHNOLOGY OF GUARANTEEING OF INDUSTRIAL SECURITY AT WATERY DEPOSITS OF MINERAL RESOURCES


Ponomarenko Yu. V., Candidate of Technical Sciences, Scientific Consultant,
OJSC «VIOGEM», Belgorod, Russia, e-mail: viogem@mail.belgorod.ru
Popov L. N., Mining Engineer, Deputy Head of Department for Mining, Surveying and Blasting Supervision in the Belgorod Region under the RF Federal Service for Ecological, Technological and Nuclear Supervision,
Strel’tsov V. I., Doctor of Technical Sciences, Professor, Leading Researcher

It is complexity of guaranteeing of industrial security in conditions of deeply occurring watery deposits on the example of Yakovlevskiy mine of Kursk Magnetic Anomaly. The method of drainage of deposist, elaborated by VIOGEM Open Joint Stock Company is represented, which is highly efficacious, ecologically pure and widely introduced. It’s founded on systems of up-ward drainage bore-holes constructed from underground mining excavations and is exploited in the mode of constant decrease of the level of waters of a drained horizon. New methods of drainage of open mining works are described, which are carried out with the help of combined drainage devices and many-faced upward bore-holes.
Key words: watery deposits, guaranteeing of industrial security, a new method of drainage of deposits, upward drainage bore-holes, a mode of bore-holes exploitation, rigs, a combined drainage device, many-faced upward bore-holes.

P. 149-159

SINEV S. V.
MECHANISMS, METHODS AND WAYS OF DESTRUCTION OF ROCKS IN ROLERBIT DRILLING


Sinev S. V., Candidate of Technical Sciences, Leading Researcher, e-mail: stanislav-vs@mail.ru,
Aprelevka office of VNIGNI, 121069, Moscow, Russia.

Three mechanisms of destruction of rocks in roller bit drilling. Isolated fracture and crushing volume. Volume may be one-act and conditionally fatigue. Fatigue in the classic sense in drilling impossible. At drilling by bits «E», «EH» in abottom-hole the dispersed microcracks, which grow logether in structural defects of rock are formed. In bits «M» and «H» similar processes under peripheral arms. It, conditionally, fatigue failure. It is impossible to achieve volume one-act destruction of breed. A mixsed way: volume one-act and fatigue (conditional) are present from beginning drilling.
Key words:
destruction, crush, volume, one-act, fatigue, cave-in, shift; a bit, periphery, arms.

P. 160-162

TERYEKHIN E. P., BULGAKOV I. S.
IMPROVEMENT OF PUMPING EQUIPMENT FOR HYDRAULIC TRANSPORT OF IRON ORE CONCENTRATE


NIIKMA-OPYT JSC, 309186, Gubkin, Russia, e-mail: niikma@mail.ru
Teryekhin E.P., Candidate of Technical Sciences, Chief Engineer,
Bulgakov I.S., Candidate of Technical Sciences, Assistant Professor,

For hydraulic transport of iron ore concentrate on JSC «OEMK» diaphragm pumps of the Dutch firm «GEHO» exhausted during the 30 years of operation are applied. Mud pumps of MC «Uralmash» can replace imported ones when equipping them by separation devices for pumping abrasive pulp according to JSC «NIIKMA» recommendations.
Key words:
hydraulic transport of iron ore concentrate, piston pumps, separation devices.

P. 163-172

KHALKECHEV R. K., KHALKECHEV K. V.
MATHEMATICAL MODELING ELASTIC FIELDS OF THE CONTACT STRESSES IN POLYCRYSTALLINE GEOMATERIALS


National University of Science and Technology «MISiS», 119049, Moscow, Russia
Khalkechev K. V., Doctor of Physical and Mathematical Sciences,
Doctor of Technical Sciences, Professor, e-mail: h_kemal@mail.ru,
Khalkechev R. K., Candidate of Physical and Mathematical Sciences,
Assistant Professor, e-mail: syrus@list.ru

Mathematical models of elastic contact stress field in polycrystalline geomaterials at their interaction using the surface of section. Without violating the generality, as interactive of geomaterials selected set of structural blocks formed in the rock massif at the intersection of multi-directional cracks. It justifies the presence of a large friction between the structural units on the basis of fractal origin of the interacting surfaces of separateness. The study developed mathematical models involving self-consistent field method allowed us to obtain expressions for calculating the contact stresses on possible structural levels. A computer experiment to determine the contact stresses between blocks in the rock massif. Using one of the mathematical models, solved the problem, as a particular case, about the stress state of the contact wheel and rail. Computer experiment showed that the area of the contact stresses of all-round com pression is reduced when implementing the sliding friction when braking, which increases the wear.
Key words:
mathematical model, contact stress, surface fractality, block structure, the contact patch, the wheel and the rail.

P. 173-181

KHALKECHEV R. K., KHALKECHEV K. V.
MATHEMATICAL MODELING OF THE EXPERIMENT ON THE DEFORMATION AND FRACTURE OF POLYCRYSTALLINE GEOMATERIALS IN THE EXPERIMENTS ON MICROBRASSERIE UNDER UNIAXIAL COMPRESSION


National University of Science and Technology «MISiS», 119049, Moscow, Russia
Khalkechev K. V., Doctor of Physical and Mathematical Sciences,
Doctor of Technical Sciences, Professor, e-mail: h_kemal@mail.ru,
Khalkechev R. K., Candidate of Physical and Mathematical Sciences,
Assistant Professor, e-mail: syrus@list.ru

In this article, the necessity of mathematical modeling of the experiment on the deformation and fracture of polycrystalline microabrasive geotextiles. Built this model in the experiment in uniaxial compression. Research of mathematical models that are reduced to the system of equations enabled us to solve the paradox of Bridgman consists in the fact that under uniaxial compression failure occurs by propagation of cracks along the compression axis, contrary to the conclusions of the classical theory of continuum mechanics. Conducted computer research enabled to give a full explanation of the nature of the fracture in lubricated and unlubricated ends microabrasion test, and to get the relative difference in the strength limits.
Key words:
mathematical modeling, experiment, deformation, destruction, polycrystalline geomaterial, macroarray, uniaxial compression.

P. 182-186

KHALKECHEV R. K.
ABOUT ONE WIDESPREAD ERROR OF USING FINITE ELEMENT METHOD WHEN DETERMINING OF THE GEOMATERIALS STRESS-STRAIN STATE


National University of Science and Technology «MISiS», 119049, Moscow, Russia
Khalkechev R.K., Candidate of Physical and Mathematical Sciences,
Assistant Professor, e-mail: syrus@list.ru

As you know when you build a discrete mesh models must satisfy the condition of completeness. It is that unlimited reduction of the sizes of finite elements and increase their number there has been a convergence behavior of the discrete model with continuous (solid medium). However, for geomaterials, there is a limit in reducing the size of finite elements associated with the existence of the elementary volume. In the study of minerals, elementary volumes which are very small, the use of the finite element method in the determination of their stress-strain state does not give such significant differences with the actual results of observation. At the same time for rocks and rock masses (elementary volumes up to several cubic meters) application of the finite element method is invalid. Unfortunately, this fact is in the existing works ignored, and as a result – attributed to the real geomaterial properties, they do not possess. To resolve this problem, this article proposed a new modified method of finite elements adapted for the study of geomaterials and to significantly improve the accuracy of the developed discrete models the stress-strain state rocks and rock masses.
Key words:
finite element method, elementary volume, completeness condition, geomaterial, numerical methods.



EARTH SCIENCES


P. 187-195

ALGEBRAISTOVA N. K., MARKOVA A. S., PROKOPYEV I. V., RAZVYAZNAYA A. V.
PREPARATION OF BULK CONCENTRATES FOR SELECTION CIRCUIT


Siberian Federal University, 660041, Krasnoyarsk, Russia
Algebraistova N. K., Candidate of Technical Sciences, Assistant Professor,
Markova A. S., Assistant,
Prokopyev I. V., Graduate Student,
Razvyaznaya A. V., Senior Lecturer

The key current problem in complex ore dressing is selection of bulk concentrates as the selection efficiency governs the final performance of beneficiation. Available standard approaches to preparation of bulk concentrates for the follow-up selection feature ponderous industrial equipment and high energy and material inputs.
It is proposed to handle the problem by using:
—Combination gravity–flotation circuits: fusion of the two concentrates in order to redistribute residual concentration of surfactants from the surface of flotation concentrate to the surface of gravity concentrate and creating thereby favorable conditions for the follow-up selection;
—Biotechnologies to treat the surface of flotation concentrate before the selection circuit in order to remove the film of collectors from the surface of sulfides. For proof tests in laboratory conditions, the necessary microbial strains have been sampled. The flotation tests prove usability of microbiological approaches in complex ore dressing.
The proposed technologies as compared with the standard methods are ecology-friendly due to reduced consumption of toxic agents and feature low energy inputs, which is important for the mining and metallurgy industry.
Key words:
flotation, lead–zinc ore, copper–molybdenum ore, direct selection circuit, bulk–selective circuit, germs, degradation of collecting agents.

P. 196-206

APTUKOV V. N., VAULINA I. N., MACHERET A. M.
ESTIMATION METHOD OF CURRENT AND FUTURE CONDITION OF WATER PROOF FORMATION BY DEVELOPMENT OF VERKHNEKAMSKOYE POTASH SALT DEPOSIT


Aptukov V. N.1, Doctor of Technical Sciences, Professor, Chief Researcher,e-mail: valeryaptukov@gmail.com,
Head of Chair, Perm State National Research University, 614000, Perm,
e-mail: aptukov@psu.ru,
Vaulina I. N.1, Researcher, e-mail: Vaulina.Inna@gallurgy.ru,
Macheret A. M., Chief Surveyor of «Uralkali» PJSC,
618426, Perm krai, Berezniki, e-mail: Aleksandr.Macheret@uralkali.com,
1 Associate of Research Laboratory on geodynamic safety of «Galurgia» OJSC,
614002, Perm.

Estimation method of current and future condition of water proof formation (VZT) is presented due to the influence of mining and geological and man-made factors based on engineering methods and mathematic modeling methods applying different criteria of safe condition. Distinctive feature of the developed method is an opportunity to make an assessment not only in the local «problematic» sites, but also on the whole area of the minefield using the developed algorithm of data integration and visualization on the considered extraction zones in the minefield. The method assumes identification of natural and man-made dangerous zones (PTOZ) based on the analysis of the value of the general estimation criteria of VZT condition in the considered site developed by the authors. The general criteria represents an algebraic sum of partial criterions with specified weight coefficients. The partial criterions are based on the assessment of natural (geological) and man-made factors. The partial criterions and consequently the general criteria are reduced to normalized form, so that distortion of the partial criterion provides rated value equal or larger than one. In the next stage in the identified PTOZ a degree of their danger is determined through clarifying analysis based on engineering methods and mathematic modeling. Application of the method by the example of one of the actual mines of Verkhnekamskoye potash and potash-magnesium salt deposit (VKMKS) is considered.
Key words:
VZT condition, general estimation criteria of natural and man-made dangerous zones, mathematic modeling.

P. 207-216

BORZAKOVSKII B. A., RUSAKOV M. I., SHILOV A. V.
PROSPECTS FOR APPLICATION OF GEOTUBES FOR DISPOSAL OF CLAY-SALT SLUDGE IN POTASH PLANTS


Research Laboratory on Backfill Operations Process of «Galurgia» OJSC,
614002, Perm, Russia
Borzakovskiy B. A., Candidate of Technical Science, Chief Researcher, e-mail: Rusakov.Mihail@gallurgy.ru,
Rusakov M. I., Head of Laboratory, e-mail: Rusakov.Mihail@gallurgy.ru,
Shilov A. V., Lead Engineer, e-mail: Shilov.Aleksandr@gallurgy.ru

In potash mines of «Uralkali» PJSC by the production process of potash chloride clay-salt sludge is formed after potash ore processing. Clay-salt sludge in the form of sludge pulp is located in sludge dumps, is admixed into salt waste pulp and is disposed in special mine wor-kings driven in underlying rock salt. Areas of the current sludge dumps are limited, their expansion needs heavy investment, and construction of new ones creates negative man-made impact on the environment. In recent years disposal of sludge of different origin in geotubes becomes more popular in foreign plants. One of the options for geotubes application in potash mines can be their utilization for disposal of clay-salt sludge in mine conditions in mined out stopes, another one – their utilization for increasing capacity of the current surface sludge dumps. The «Galurgia» institute based on «Uralkali» PJSC mines has performed experimental tests on disposal of clay-salt sludge in geotubes. The tests have been carried out in mine conditions and in sludge dump. Results of the tests are positive. As a result of dewatering at initial density of sludge pulp 1.33 t/m3 in geotubes the density of settlings of sludge solids has reached up to 1.8 t/m3. Sludge disposal in geotubes in mine conditions in Berezniki 4 mine can account for up to 15% of the formed sludge volume. Increase of capacity of the current sludge dumps due to expansion of dam height using geotubes makes up to 10%. Considered process of geotube application enables to perform extraction and processing of potash ore without construction of new ground sludge dumps until the end of mine life.
Key words:
potash mine, clay-salt sludge, mined out chambers, sludge dump, geotube, dewatering.

P. 217-221

BRIGADIN I. V., SEGEN A. V.
ABOUT ONE ELEMENT MECHANISM OF DETONATION


State scientific-research Institute of applied problems, 191167, Saint-Petersburg, Russia
Brigadin I. V., Candidate of Technical Sciences, Senior Researcher, e-mail: ivanbrigadin2008@ya.ru,
Segen’ A. V., Candidate of Technical Sciences, Deputy General Director

Based on the analysis of experimental data and basic ideas about the mechanism of detonation problematic issues of the modern practice of mining with the use of explosives, including emulsion. The hypothesis about the contribution of emission and resonant absorption in the mechanism of detonation. The proposed direction of the theoretical search and experimental study of the possible contribution of resonance radiation and absorption in the detonation process.
Key words:
mechanism of detonation, hypothesis, emission, resonant absorption, experimental search.

P. 222-229

VAKULENKO I. S., SMIRNOV V. I., SURIN S. D.
EXPERIENCE OF CONSTRUCTION AND PROSPECTS FOR THE USE OF UNDERGROUND STORAGES FOR DRILLING WASTE IN PERMAFROST


Vakulenko I. S., Graduate Student, e-mail: isvakulenko@mail.ru, National University of Science and Technology «MISiS», 119049, Moscow, Russia,
Smirnov V. I., Doctor of Technical Sciences, Professor, Councilor of the Union of Gold Producers of Russia,
Surin S. D., Candidate of Technical Sciences, Leading Researcher, Gazprom Geotechnologies LLC.

Effective development of oil-gas condensate fields, which are located in a permafrost re-gion, is defined by means of the ideology, which forms approaches to address the problem of the liquidation of drilling wastes from exploratory and operating boreholes. This Article consid-ers the experience and modern condition of borehole hydraulic technology in the case of the building of underground reservoirs designed for the liquidation of drilling wastes in the Yamal Peninsula. It is shown, that the problem of the liquidation of drilling wastes in the northern re-gions becomes ones of the priority Scientific and Technical issues. It provides economic efficien-cy of woks and their ecological safety. There are given the instances of process solutions and are specified problems connected with the implementation of borehole hydraulic technology.
Key words:
permafrost, environment, borehole, borehole hydraulic technology, under-ground reservoir, cryopeg.

P. 230-242

TENISON L. O.
PREDICTION OF VERTICAL DEFORMATIONS OF GROUND SURFACE IN CONDITIONS OF FLOODED MINE BEREZNIKI 1


Tenison L.O., Candidate of Technical Science, Chief of Research Geomechanical Laboratory of «Galurgia» OJSC, Berezniki branch,
618400, Berezniki, Russia, e-mail: Tenison.Lyudmila@gallurgy.ru.

Mine workings of the mine Berezniki 1 flooded since 2007–2009 are located directly under high-rise district of the city of Berezniki. The city development is planned for decades, in this regard a long term prediction of the evolution process of ground surface movement is a critical task. To date a huge base of monitoring results is available. Based on processing and classification of the monitoring results on ground surface movement above mining workings of the mine Berezniki 1 before and after the flood of the mine area using a comparative method of subsidence rates in different periods η’I η’II η’III and degree of the pillars load СI, СII restraint indexes of hydrostatic head on degree of the pillars load in conditions of the flooded mine have been determined.
Based on the results of the performed studies and taking into account the world experience on the influence of hydrostatic head on subsidence process a prediction technique of vertical deformations of ground surface in different periods since the beginning of undermining for the conditions of the flooded mine Berezniki 1 has been developed.
Based on the specified technique prediction schedules of the growth of ground surface subsidence for different sites of residential area of Berezniki have been developed. Estimation on cumulated and expected pillars deformations has been carried out. Based on the estimation it has been determined that acceleration of the movement process in the high-rise area is not expectable in the foreseeable.
Key words:
rock movement, mine workings flood, vertical deformations, geomechanical system, development system parameters, interchamber pillars, load, hydrostatic pressure.

P. 243-249

ROMANOV V. V., POSERENIN A. I., DRONOV A. N., MAL’SKIY K. S.
REVIEW OF GEOPHYSICAL METHODS TO DETECT MECHANICAL DAMAGES IN ROCK MASS AROUND EXCAVATIONS


1 Russian State Geological Prospecting University named after Sergo Ordzhonikidzе (MGRI-RSGPU), Moscow, Russia.Romanov V. V.1, Candidate of Technical Sciences, Assistant Professor, e-mail: roman_off@mail.ru,
Poserenin A. I.1, Senior Lecturer, e-mail: poserenin83@gmail.com, Dronov A.N., Senior Lecturer, e-mail: veutel@mail.ru, Peoples’ Friendship University of Russia, 113093, Moscow, Russia,
Mal’skiy K.S.1, Assistant Professor, e-mail: sabbat@mail.ru

The importance of mine safety and the proper disposal of abandoned mines is proved by the example of the infamous Verkhnekamsk potassium and magnesium salts, mine flooding which caused the catastrophic failure surface in populated areas. Timely monitoring of geo-physical properties of the mine facilities would help to avoid such devastating consequences, and take timely measures to protect engineering. The article tells about the possibilities of geophysical methods that are effective in finding and locating hidden underground cavities, carrying the potential danger for surface and underground mining. Browse Groups geophysical methods are actively applied in the study of undermined area, based on consideration of their strengths and weaknesses in relation to the task. Among mentioned in Article geophysical methods – seismic, seismic acoustics, microseismic sensing, electrical resistivity tomography and Seismotomography, gravimetric and georadar. Are the main signs of cavities in the fields of different nature, mainly electrical and seismic. The article is accompanied by a number of illustrations with examples geophysical sections.
Key words:
mine workings, geophysical methods, geological hazards, seismic, electromag-netics, integration of geophysical methods.

P. 250-259

RUCHKIN V. I., KONOVALOVA YU. P.
DEPENDENCE BETWEEN DYNAMICS OF THE INTENSE DEFORMED GEOLOGICAL ENVIRONMENT AND TECHNOGENIC IMPACT ON A NATURAL TECTONIC STATE OF ROCK MASSIF AT THE MINING ENTERPRISES


1 Institute of Mining of Ural Branch of Russian Academy of Sciences, 620219, Ekaterinburg, Russia
Ruchkin V.I.1, Researcher, e-mail: ruchkin@igd.uran.ru,
Konovalova Yu.P.1, Researcher, e-mail: lisjul@mail.ru

The technique of control of rock massif tension on the basis of the tool geodynamic analysis is stated. The geodynamic analysis connected with studying of fields of tension in the rock massif at joint influence of natural and technogenic geodynamic processes is briefly described. Influence of the old «faded» displacement zones on active variability of the intense deformed condition of the geological environment as a result of modern technogenic dynamic process is shown. The technique of carrying out the geodynamic analysis qualitatively changes approach to the organization of tool supervision for control of the intense deformed condition of rock massif at the mining enterprises.
Key words: rock massif, ore body, observing station, geodynamic ground, displacement zone, tectonic disturbance, the intense deformed state.

P. 260-280

VOROBYOVA S. V.
EVOLUTION OF THE CRYSTAL BASE AND FORMATION MULTICOMPONENT DEPOSITS OF CLUMPY GRANITE AREAS


Vorobyova S. V., Candidate of Geological and Mineralogical Sciences, Assistant Professor,
Mining Engineer-Geologist, е-mail: vorobjevasv@mail.ru,
Saint-Petersburg, Russia

Evolution of the crystal base has come to the end in areas of long vоlсano-plutonic activity with formation high termogenous granite. Global placement multicomponent deposits is defined by clumpy granite areas which are under control of the world field of tectonic strains. It is necessary to recognise multicomponent deposits metamorphogenetic-hydrothermal. To these deposits accompanied by concentration of uranium and thorium.
Key words:
the crystal base; granites high termogenous; the world field of tectonic strains; multicomponent deposits.

P. 281-287

GOLYNSKAYA F. A., SMIRNOVA O. S., NIKONOV R. A.
PREDICTION OF SPONTANEOUS COMBUSTION OF COAL IN A COAL SEAM 19 OF THE FIELD OF MINE «RASPADSKAYA» KUZNETSK BASIN


Golynskaya F. A., Candidate of Geological and Mineralogical Sciences, Assistant Professor, Mining Institute, National University of Science and Technology «MISiS», 119049, Moscow, Russia, e-mail: ud@msmu.ru,
Smirnova O. S., Candidate of Physical and Mathematical Sciences,Senior Researcher, Lomonosov Moscow State University, Moscow, Russia,
Nikonov R. A., Junior Researcher, Institute of Oil and Gas Problems of Russian Academy of Sciences, Moscow, Russia.

The article describes the principles and methodology of prediction of spontaneous combustion of coals on the example of a coal seam 19 of the field of mine «Raspadskaya» Kuznetsk basin. The research included the establishment of geological factors of spontaneous combustion of coal, determination of the boundary values (norms) on the degree of danger of spontaneous combustion and definitions classification method data «close» to the reference groups of observations (rank model) the degree of danger of spontaneous combustion at the point of observation (wells). The result is a graphical representation of the distribution in the contours of a mine field differing in the degree of danger of spontaneous combustion of the studied coals Raspadsky.
Key words:
spontaneous combustion of coal, ranking model, norm, rank scale, the reference point, mine field, the degree of danger of spontaneous combustion of coal, ArcGIS.

P. 288-293

DZHURAEV R. U., MERKULOV M. V.
EXPERIMENTAL STUDY OF THE HEAT CAPACITY OF DOWNHOLE WHEN DRILLING EXPLORATIONS WELLS WITH AIR PURGE


Russian State Geological Prospecting University named after Sergo Ordzhonikidzе (MGRI-RSGPU), Moscow, Russia
Dzhuraev R. U., Graduate Student, e-mail: strong0185@mail.ru,
Merkulov M. V., Doctor of Technical Sciences, Professor

In the process of destruction of rocks is allocated a certain amount of heat that goes into heating the bottom-hole zone and the crown, the high temperature at the bottom affect the quality of drilling during the drilling of wells in permafrost creating complications like sticking sludge particles, balling, Reduced bore accretion condensate in the joints, clamps, burn marks and other rock cutting tool. Since the temperature factor is one of the main factors affecting the efficiency of the drilling of exploration wells in permafrost, there is the need to incorporate action temperature factor.
Key words:
frozen rocks, drilling, temperature, pressure, bottom, borehole, vortex tube, freezing, purge air, crown.

P. 294-302

ISACHENKO A. A., RIB S. V., VOLOSHIN V. A., FRYANOV V. N.
ASSESSMENT OF GEOMECHANICAL CONDITION OF ROCK MASS IN THE VICINITY OF SLOPES OF ADJACENT COAL SEAMS USING NUMERICAL FINITE ELEMENT MODELING

Isachenko A. A., Mining Engineer, JSC «GCC «JUzhkuzbassugol», 654924, Novokuznetsk, Russia, e-mail: metal_kuzbass@mail.ru,
Rib S. V.1, Senior Lecturer, e-mail: seregarib@yandex.ru,
Voloshin V. A.1, Candidate of Technical Sciences, Assistant Professor,
e-mail: voloshinva1966@gmail.com,
Fryanov V. N.1, Doctor of Technical Sciences, Professor, Head of Chair,
e-mail: fryanov@sibsiu.ru,
1 Siberian State Industrial University, 654007, Novokuznetsk, Russia.

We have investigated the geomechanical state of rock mass in the vicinity of the four slopes of adjacent seams 1 and 2 using numerical finite element modeling. The author used a complex computer programs CoalPillar, developed at the Department of Geotechnology SibGIU adapted to the geological and mining conditions of one of the mines Erunakovskogo geological and economic region of Kuzbass. Numerical simulation of finite element method was carried out with two versions of the natural stress field outside the influence of mine workings: the gravitational field of stress and geotectonic stress field. On the stability of slopes on the lower seam 1 significantly affects the upper seam 2, since the height of the arch fracture rock slopes in the seam 1 reaches the roof of the seam 2. Seam 1 has little effect on soil heave rocks slope on the sides of the seam 2. The workings of coal is expected to spin, so the vertical stress in the 1.2 to 1.5 times the tensile strength of coal under compression in natural conditions. The proposed method of assessment of geomechanical parameters when changing geological and mining conditions will develop appropriate preventive measures and recommendations for inclusion in the passport of fastening of developments that will improve the safety of mining operations.
Key words:
rock mass, slopes, stress-strain state, numerical modeling, finite element method, software system, pillar, zones of destruction rock.

P. 303-312

LUSHPEY V. P., SOBOLEVA E. E.
ESTIMATION OF ECOLOGICAL RISK DURING EXPLOITATION OF PAVLOVSKOGO LIGNITE DEPOSIT


Lushpey V. P.1, Doctor of Technical Sciences, Professor, e-mail: lvp-2012@mail.ru,
Soboleva E. E.1, Graduate Student, Leading Engineer on Environmental Protection (Ecologist), Novoshakhtinskoe Mine, Primorskugol JSC, e-mail: SobolevaEE@suek.ru,
1 Far East Federal University, Vladivostok, Russia.

The results of comparative analysis of the impact on various ecosystems. Installed characteristic features of the impact of mines on the hydrosphere, and on this basis the assessment of environmental risk.
Key words:
excessive fee, hydrochemical analysis, quarry waters, maintenance of contaminents, negative influence, treatment facilities.

P. 313-319

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