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| ISSN 0536-1028 (Print) ISSN 2686-9853 (Online) |
Automatic analysis of pit slope stability in clays of quaternary sediments
DOI: 10.21440/0536-1028-2019-6-21-30
Karablin M. M., Guriev D. V., Prostov S. M., Lesin Iu. V. Automatic analysis of pit slope stability in clays of quaternary sediments. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 6: 21–30. DOI: 10.21440/0536-1028-2019-6-21-30
Introduction. Preventing landslides of slopes formed by sand and clay of quaternary sediments with a thickness of 40–50 m is an essential task of opencast mining. Possessing significant stability at natural moisture content, rocks drop soil strength in water saturated condition. In some instances, it may cause disequilibrium in the marginal rock mass. The maintenance of slopes (pit edges, waste dumps, dams, mounds, etc.) stability is the most basic requirement imposed on mining enterprises today.
Research aim is to improve the accuracy of slopes stability analysis by means of automatic search of the most strained glide surface with the lowest value of slope stability safety factor, both at the design stage and at the stage of emergency control associated with slope stability violation.
Methodology. The method of analyzing slope stability in the main computational models, including models with low-angle concordant bedding of a natural plane of weakness. The algorithm was implemented by an analytical simulation method in Stable slope (Russ. Ustoichivyi bort) software package.
Results. Based on the data from slope stability analysis at a polymetallic mine in Altay krai, a graph of slope angle versus slope height in quaternary sediments has been built for various values of the angle of incidence for the contact “quaternary sediments–underlying bedrock”.
Summary. Slope design procedure involves making laborious polycyclic calculations associated with the selection of the resultant angles of slopes, which will provide stability, for the specified height, mine and geological conditions and physical-mechanical characteristics of the marginal rock mass. Automatic analysis with Stable slope software makes it possible to improve stable slopes parameters computational accuracy when designing mining, by means of an option of searching for the most strained glide surface. Further fundamental improvement of analysis accuracy is possible with 2D geological models of slopes substituted for 3D models with slope stability factor determination by the most critical area. Such 3D
models may be developed by geologic sections and geophysical sounding in the areas with abnormal density and water saturation. Besides, analysis accuracy may be improved if the model is developed as far as the real contour of mine profile, lithological types of rock, variability of physical-mechanical properties of rock are concerned.
Key words: ground slopes; stability; computational automation; safety factor; limiting equilibrium; back calculation; physical and mechanical properties of soils.
REFERENCES
1. Mukhametkaliev B. S., Kaliuzhnyi E. S., Siedina S. A., Abdibekov N. K. Geomechanical stabilization of pit slopes stability at the increasing depth. Gornyi zhurnal = Mining Journal. 2018; 4: 27–32. DOI: 10.17580/gzh.2018.04.05. (In Russ.)
2. Bakhaeva S. P. et al. Slope stability analysis at coal mines. Tomsk: Tomsk University Publishing;
2015. (In Russ.)
3. Starostina O. V., Dolgonosov V. N., Aliev S. B., Abueva E. V. Study of stability of the benches of the upper horizons of the stationary side of the “Bogatyr” open-pit mine. Ugol = Coal. 2019; January: 27–32. (In Russ.)
4. Cheng Y. M., Lau C. K. Slope stability analysis and stabilization. CRC Press Taylor & Francis Group, 2014.
5. Zhabko A. V. On problems and modern methods of evaluating the stability of slides on open mountain works. Problemy nedropolzovaniia = The Problems of Subsoil Use. 2018; 3: 96–107. (In Russ.)
6. Zhabko A. V. Theory of calculation of the stability of slopes and bases, slope stability in the field of tectonic, seismic and hydrostatic stresses. Izvestiya Uralskogo Gosudarstvennogo Gornogo Universiteta = News of the Ural State Mining University. 2016; 4 (44): 50–53. (In Russ.)
7. Kharisov T. F. Problem of assessment of the safety factor of the open-pit sides. Problemy nedropolzovaniia = The Problems of Subsoil Use. 2018; 3 (18): 108–118. (In Russ.)
8. Digvijay P. Salunkhe, Rupa N. Bartakke, Guruprasd Chvan, Pooja R. Kothavale. An overview on methods for slope stability analysis. International Journal of Engineering Research & Technology (IJERT). 2017; 3 (3): 528–535. DOI: 10.17577/IJERTV6IS030496. (In Russ.)
9. Tsirel S. V., Pavlovich A. A. Problems and development patterns of the methods of geomechanical substantiation of pit slopes parameters. Gornyi zhurnal = Mining Journal. 2017; 7: 39–45. DOI: 10.17580/gzh.2017.07.07. (In Russ.)
10. Baltiyeva A. A., Altayeva A. A., Sedina S. A., Shamganova L. S., Tulebayev K. K. Sarbai mining open pit stable state edges geomechanical monitoring using software Usto4du. Proc. of the 16th Int. Multidisciplinary Sci. GeoConf. (SGEM 2016). New York: Curran Associates. 2016; 2; 2: 525–530.
11. Schlotfeldt P., Elmo D., Panton B. Overhanging rock slope by design: an integrated approach using rockmass strength characterisation, large-scale numerical modelling and limit equilibrium methods. Journal of Rock Mechanics and Geotechnical Engineering. 2018; 10 (1): 72–90.
12. Garmondyu E. Crusoe Jr., Cai Qing-xiang, Shu Ji-sen, Han Liu, Yamah J. Barvor. Effects of weak layer angle and thickness on the stability of rock slopes. Int. J. Min. & Geo-Eng. 2016; 50 (1).
13. Nesmeianov B. V., Nesmeianova Iu. B. Task solution for ensurance of slope stability based on the use of integrated strength index on loosening surfaces (given the presence of only longitudinal loosening planes in a sloping rocks mass – "flat" slope stability task solution). Marksheideriia i nedropolzovanie = Mine Surveying and Subsurface Use. 2016; 1: 32–35. (In Russ.)
14. Nesmeianov B. V., Nesmeianova Iu. B. Task solution for ensurance of slope stability based on the use of integrated strength index on loosening surfaces (given the presence of diversely oriented longitudinal, transverse and diagonal low-angle and steeply-pitching planes of weakness in a sloping rocks mass – "flat" slope stability task solution). Marksheideriia i nedropolzovanie = Mine Surveying and Subsurface Use. 2016; 2: 35–37. (In Russ.)
15. Zubkov V. V., Zubkova I. A. Comparative analysis of open pit slope stability. Marksheideriia i nedropolzovanie = Mine Surveying and Subsurface Use. 2017; 2: 50–52. (In Russ.)
Received 6 May 2019
Justifying the types and methods of adapting the mining technological system of a mining enterprise to changing conditions of underground mining
DOI: 10.21440/0536-1028-2019-6-14-20
Smirnov A. A., Nikitin I. V. Justifying the types and methods of adapting the mining technological system of a mining enterprise to changing conditions of underground mining. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 6: 14–20 (In Russ.). DOI: 10.21440/0536-1028-2019-6-14-20
Research aim is to study the process of adapting the mining and technological system of a mining enterprise to the changing external and internal conditions of deep-seated deposits underground mining. By the term mining and technological system of a mining enterprise we mean a set of interrelated technological processes and organizational solutions for mineral extraction from the subsoil and its further dressing.
Research methodology. The paper uses a complex method of research, which includes the analysis of conditions and generalization of the experience of underground mining of deep ore and non-metallic deposits, systematization and assessment of conditions and factors affecting the functioning of the mining and technological system of the mining enterprise, the establishment of types and development of adaptation methods based on the method of scientific induction.
Results. The substantiation of types (micro- and macroadaptation) and methods (reservation or
diversification of production, regulation or modernization of production, organizational changes
or restructuring) of adaptation of mining and technological system of the mining enterprise to the changing external economic (market), natural (mining and geological), production (technological), social and environmental conditions of underground mining of deep-seated deposits on the basis of accounting and management of factors causing transition processes.
Results application area. The results can be used in the feasibility study and design of mining and technological systems of mining enterprises with underground method of ore mining (for example, in the mining of deep-seated iron ore deposits).
Key words: deep-seated deposit; underground mining; adaptation; transition process; systematization; economic stability.
Acknowledgements: The article has been prepared following the researches for the project 18-5-5-10 of UB RAS Program for basic research.
REFERENCES
1. Trubetskoi K. N., Chanturiia V. A., Kaplunov D. R., Rylnikova M. V. Integrated development of deposits and deep mineral refining. Moscow: Nauka Publishing; 2010. (In Russ.)
2. Iakovlev V. L., Kornilkov S. V. Methodological features of subsoil development at the modern stage. Vestnik UrO RAN. Nauka. Obshchestvo. Chelovek = Bulletin of UB RAS. Science. Society. Man. 2013; 4: 43–49. (In Russ.)
3. Sokolov I. V., Antipin Iu. G., Nikitin I. V., Baranovskii K. V., Rozhkov A. A. Survey on underground geotechnology during transition to the development of deep reserves of inclined copper pyrite deposits. Izvestiya Uralskogo Gosudarstvennogo Gornogo Universiteta = News of the Ural State Mining University. 2016; 2 (42): 47–53. (In Russ.)
4. Boguslavskii E. I., Minaev Iu. L., Minaev D. Iu. Deep ore deposits technology design. Zapiski Gornogo instituta = Journal of Mining Institute. 2007; 172: 158–161. (In Russ.)
5. Thrybom L., Neander J., Hansen E., Landemas K. Future challenges of positioning in underground mines. IFAC-PapersOnLine. 2015; 48 (10): 222–226.
6. King B., Goycoolea М., Newman A. Optimizing the open pit-to-underground mining transition.
European Journal of Operational Research. 2017; 257 (1): 297–309.
7. Epstein R., Goic M., Weintraub A., Catalan J., Santibanez P., et al. Optimizing long-term production plans in underground and open-pit copper mines. Operations Research. 2012; 60 (1): 4–17.
8. Sebutsoe T. C., Musingwini C. Characterizing a mining production system for decision-making purposes in a platinum mine. The Journal of the Southern African Institute of Mining and Metallurgy. 2017; 117: 199–206.
9. Iakovlev V. L., Sokolov I. V., Sakantsev G. G., Kravchuk I. L. Transient studies under the integrated ore development. Gornyi zhurnal = Mining Journal. 2017; 7: 46–50. (In Russ.)
10. Loskutova O. V. Managing the risks and economic stability of mining enterprises based on the fuzzy sets theory. Moscow: Nedra Kommiunikeishens Ltd Publishing; 2004. (In Russ.)
11. Dorofeeva V. V. Enterprises adaptation in competitive environment. Irkutsk: BGUEP Publishing; 2011. (In Russ.)
12. Sokolov I. V., Antipin Iu. G., Nikitin I. V. Basic principles and assessment criteria of technological strategy for underground mining in transition zones. Gornyi informatsionno-analiticheskii biulleten (nauchno-tekhnicheskii zhurnal) = Mining Informational and Analytical Bulletin (scientific and technical journal). 2017; 9: 151–160. (In Russ.)
13. Dushin A. V., Taktashkin B. A. Economic evaluation of mineral resources potential of solid minerals with a view to the national resource mode. Ekonomika regiona = Economy of Region. 2013; 1: 88–95. (In Russ.)
14. Dolgova I. V., Shkarpetina E. V., Urumova F. M. Development of mountain regions in the program of import substitution. Izvestiya Uralskogo Gosudarstvennogo Gornogo Universiteta = News of the Ural State Mining University. 2018; 3 (51): 150–154. (In Russ.)
15. Medvedev A., Sokolov I., Gobov N., Smirnov A. Cleaner production in mining industry: a flowsheet for underground mining of iron ore deposit. In: 14th SGEM GeoConference on Science and Technologies in Geology, Exploration and Mining, SGEM2014 GeoConference Proceedings. 2014; 1 (3): 85–90.
Received 17 May 2019
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Golik V. I. |
Activation of binders for hardening mixtures | 8 |
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Egoshina O. S. |
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Kuznetsov D. V. |
The study of mining equipment concentration dynamics in conditions of deep open pits of the North | 22 |
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Integral indicators of industrial safety of gas transportation objects evaluation |
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Stability estimation of rock mass weakened by fissure | 36 |
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Leonov R. E |
Investigation of machine learning to forecast the parameters of a concentrating complex | 42 |
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DESTRUCTION OF ROCKS. DRILLING-AND-BLASTING OPERATIONS |
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Zharikov S. N. |
Development of drilling and blasting works at the open pit limiting contour | 48 |
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Sokolov I. V. |
Efficiency improvement of quartz production by mean of using two-dimensional system of distributed charges | 56 |
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Saplin O. N. |
The investigation of the influence of blasting operations on the safe exploitation of mining works infrastructure facilities | 66 |
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ORE PREPARATION AND MINERAL DRESSING |
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Shishliannikov D. I. |
Inhibitor protection of electric centrifugal pumps in the conditions complicated by scale and corrosion damage | 90 |
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Control over the technical condition of winning machine executive body | 107 |
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Electrical soundings with combined three-electrode planting AMN+NMA | 115 |
Investigating the parameters of dispersion in the plane system of charges at granular quartz deep mining
DOI: 10.21440/0536-1028-2019-6-5-13
Sokolov I. V., Rozhkov A. A. Investigating the parameters of dispersion in the plane system of charges at granular quartz deep mining. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal Gornyi zhurnal = Mining Journal. 2019; 6: 5–13. DOI: 10.21440/0536-1028-2019-6-5-13
Introduction. There is much concern about raw material overgrinding as a result of blasting when mining granular quartz. The main blasting method of deep mining is borehole blasting with rings of continuous charges. The main drawbacks of the method include nonuniform distribution of explosives along the plane of the broken layer and the fact that the significant energy of continuous charges is spent on the shattering effect which automatically overgrinds the material in the area nearest the blast. Research aim is to develop the technology of blasting and optimize its parameters ensuring the reduced output of overgrinded quartz fraction.
Methodology includes the development and application of a mathematical model of drilling and blasting parameters forecast in granular quartz deep mining.
Research concept. A technology of breaking has been proposed by way of solution to the given problem. The technology lies in the concept that the uniformity of explosive energy concentration distribution in the broken layer is ensured by charges dispersion by air gaps and the particular order of their arrangement in the plane of the ring. To implement the technology, a method of forming dispersed charges in deep upholes has been developed; the method does not require additional efforts and equipment.
Results. A special technique has been created, which makes it possible to determine the parameters of dispersion ensuring the relevant specific consumption of explosives along the whole plane of the broken layer. The dependence between the output of the overgrinded quartz fraction and the parameters of dispersion in the plane system of charges has been determined. Engineering and economic evaluation of breaking technology options has been carried out as compared to the conventional one. Potential economic benefit has been estimated from the developed technology application for 1t of produced ore.
Key words: granular quartz; blasting; dispersed charge; borehole ring; air gap; specific consumption of explosives.
1. Brodskaia R. L., Gettse I., Kotova E. L., Khaide G. Evolution of individuals and aggregates of the
vein quartz in deposits of Kyshtym region (the Urals). Zapiski Rossiiskogo mineralogicheskogo obshchestva =
Geology of Ore Deposits. 2015; 144 (1): 93–100. (In Russ.)
2. Götze J., Pan Y., Müller A., Kotova E. L., Cerin D. Trace element compositions and defect structures
of high-purity quartz from the Southern Ural Region, Russia. Minerals. 2017; 7: 189.
3. Baranovskii K. V., Kharisova O. D. Assessment of actual ore losses and dilution based on laser
scanning data at underground mining. Izvestiia Tulskogo gosudarstvennogo universiteta. Nauki o Zemle =
Proceedings of the Tula State University. Earth Sciences. 2018; 4: 135–147. (In Russ.)
4. Mitiushkin Iu. A., Lysak Iu. A., Plotnikov A. Iu., Ruzhitskii A. V., Shevkun E. B., Leshchinskii A. V.
Optimization of parameters of explosive works increase in intervals of delay. Gornyi informatsionnoanaliticheskii
biulleten (nauchno-tekhnicheskii zhurnal) = Mining Informational and Analytical Bulletin
(scientific and technical journal). 2015; 4: 341–348. (In Russ.)
5. Kazakov N. N. Parameters of process of camouflage action of explosion of a hole charge of final
length. Gornyi informatsionno-analiticheskii biulleten (nauchno-tekhnicheskii zhurnal) = Mining
Informational and Analytical Bulletin (scientific and technical journal). 2013; S1: 109–119. (In Russ.)
6. Onederra I. A., Furtney J. K., Sellers E., Iverson S. Modelling blast induced damage from a fully
coupled explosive charge. International Journal of Rock Mechanics and Mining Sciences. 2013; 58: 73–84.
7. Sokolov I. V., Smirnov A. A., Rozhkov A. A. Efficiency improvement of quartz production by mean
of using two-dimensional system of distributed charges. Izvestiya vysshikh uchebnykh zavedenii. Gornyi
zhurnal = News of the Higher Institutions. Mining Journal. 2018; 1: 56–65. (In Russ.)
8. Gorinov S. A., Smirnov A. A. Blasting effect from the plane system of explosive charges when
breaking rock massif. Gornyi informatsionno-analiticheskii biulleten (nauchno-tekhnicheskii zhurnal) =
Mining Informational and Analytical Bulletin (scientific and technical journal). 2001; 4: 42–50. (In Russ.)
9. Yue Z. W., Yang R. S., Chen G., Pan C. C., Meitan X. Dynamic test on siltcharge blasting of air-deck
charge. Journal of the China Coal Society. 2011; 36(3): 398–402.
10. Leshchinskii A. V., Shevkun E. B. Dispersion of borehole charges. Khabarovsk: PNU Publishing;
2009. (In Russ.)
11. Yue Z. W., Yang R. S., Chen G., Pan C. C., Meitan X. Dynamic test on siltcharge blasting of airdeck
charge. Journal of the China Coal Society. 2011; 36(3): 398–402.
12. Bondarenko I. F. et al. Drilling and blasting at kimberlite pipes of Yakutia. Ekaterinburg: IM UB
RAS Publishing; 2017. (In Russ.)
13. Yang G. L., Yang R. S., Jiang L. L. Pressure distribution along borehole with axial air-deck charge
blasting. Explosion and Shock Waves. 2012; 32: 653–657.
14. Smirnov A. A., Rozhkov A. A. Investigation of the action of the explosion of the ring borehole
pattern. Vzryvnoe delo = Explosion Technology. 2018; 119-76: 118–128. (In Russ.)
15. Latyshev O. G., Petrushin A. G., Azanov M. A. Commercial explosives. Ekaterinburg: UrSMU
Publishing; 2009. (In Russ.)
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