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Journal articles on the topic 'Sublevel caving'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Khazaei, Soroush, and Yashar Pourrahimian. "Mathematical Programming Application in Sublevel Caving Production Scheduling." Mining 1, no. 2 (2021): 180–91. http://dx.doi.org/10.3390/mining1020012.

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Production scheduling determines the most beneficial mining sequence over the life of a mine. Developing a schedule that meets all mining aspects can substantially reduce mining costs and increase profitability. Among all underground mining methods, the sublevel caving method is a common method with moderate development requirements, a high production rate, and a high degree of mechanization and flexibility. None of the manual planning methods and heuristic algorithms used in commercial software will lead to a truly optimal schedule. Mathematical programming models, particularly mixed-integer

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2

Marian, Dacian-Paul, and Ilie Onica. "Exploitation of the Polymetallic Antonio Ore Body, From Băița Plai Mine." Mining Revue 28, no. 4 (2022): 33–41. http://dx.doi.org/10.2478/minrv-2022-0028.

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Abstract The Antonio polymetallic ore body is part of the Baița Plai ore deposit. Below the XVIII horizon, it has a medium slope, a height of approx. 81 m, an average extension of 200 m and a thickness varying from 4 to 36 m. Above this horizon, the orebody was mined in horizontal slices with integral backfill and the first 9 m high sublevel with rooms and pillars. In depth, below this sublevel, 6 more sublevels with a height of 12 m are mined with sublevel caving mining method. The design of the opening, preparation and exploitation of the deposit was carried out for a production capacity of

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3

Yu, Bin, Jun Zhao, and Hong Chun Xia. "Study on Technology of Fully-Mechanized Sub-Level Caving Mining Technology in the Datong Permo Carboniferous Coal Seam." Advanced Materials Research 616-618 (December 2012): 565–68. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.565.

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This thesis briefly introduced roof control technology in fully-mechanized sublevel caving mining with hard roof and hard coal seam, Mining technology , gas prevention and comprehensive prevention and control technology in spontaneous combustion of coal, which in longwall top-coal caving face with hydraulic support in thickness seam in the Datong permo carboniferous coal seam . New development directions of fully-mechanized sublevel caving mining technology in the Datong mining area in the next few years.

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4

Lv, Hua Wen. "Strata Behaviors of Fully-Mechanized Sublevel Caving Face Based on Similar Simulation Test." Advanced Materials Research 734-737 (August 2013): 638–43. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.638.

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in view of research situations of the fully mechanized sublevel caving, the similar simulation test model for fully mechanized sublevel caving was presented. During the top-coal caving process, variation of top-coal subsidence and abutment pressure were measured. Consequently, the ground pressure behavior of fully mechanized sublevel caving was analyzed. The following conclusions can be reached: (1) top coal subsidence experiences the process of slow increase, trend to aggressive and sharp increase; (2) undulate change as well as decay after reaching the peak of abutment pressure is appeared w

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5

Li, Fangrui, Jie Guo, Fengshan Ma, Guang Li, and Yewei Song. "The Influence of Different Sublevel Heights on the Stability of Faults under Sublevel-Filled Synergistic Mining." Applied Sciences 13, no. 23 (2023): 12906. http://dx.doi.org/10.3390/app132312906.

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At present, when addressing the problem of fault stability in mines, most attention is paid to the study of the impact of a single mining method on faults. In order to study fault stability in mines more comprehensively, this paper researches the effect of coordinated mining using multiple mining methods. For example, the sublevel caving method without the sill pillar and the lower-layer filling method of coordinated mining can be used to analyze the dynamic response law of the fault, as well as the stability of the fault in different mining conditions. In this paper, the stress field, displac

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6

Tan, Yuye, Mochuan Guo, Yimin Hao, Chi Zhang, and Weidong Song. "Structural Parameter Optimization for Large Spacing Sublevel Caving in Chengchao Iron Mine." Metals 11, no. 10 (2021): 1619. http://dx.doi.org/10.3390/met11101619.

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Non-pillar sublevel caving is beginning to use large structural parameters in China. Appropriate structural parameters can effectively control the loss and dilution of stope and improve ore drawing efficiency. In this study, taking Chengchao Iron Mine as the engineering background, a theoretical calculation, a numerical simulation, and physical similarity experiments were combined to optimize sublevel height, production drift spacing, and drawing space. The optimal structural parameter range, based on the ellipsoid ore drawing theory, was obtained as a theoretical reference for subsequent stud

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7

Zhang, Jia Fan. "Analytical Solution and Engineering Application of the Inclined Rectangle Plate under Longitudinal and Lateral Load." Advanced Materials Research 168-170 (December 2010): 696–700. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.696.

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To the inclined rectangle plate subjected to forces acting longitudinally and laterally, the analytical solution of deflection, stress and inner force, considering the influence of inner force in central surface on the bending of the plate, were given by using the theory of plate and energy method. In accordance with the characteristics of structural form of rock layers in horizontal section top coal sublevel caving for the mining steep seam, deflected deformation rules of the roof and evolution path along influencing factors were discussed, the critical technical parameter of horizontal secti

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8

Tu, Jingzhi, Yanlin Zhang, Gang Mei, and Nengxiong Xu. "Numerical Investigation of Progressive Slope Failure Induced by Sublevel Caving Mining Using the Finite Difference Method and Adaptive Local Remeshing." Applied Sciences 11, no. 9 (2021): 3812. http://dx.doi.org/10.3390/app11093812.

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Slope failure induced by sublevel caving mining is a progressive process, resulting in the large deformation and displacement of rock masses in the slope. Numerical methods are widely used to investigate the above phenomenon. However, conventional numerical methods have difficulties when simulating the process of progressive slope failure. For example, the discrete element method (DEM) for block systems is computationally expensive and possibly fails for large-scale and complex slope models, while the finite difference method (FDM) has a mesh distortion problem when simulating progressive slop

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9

Potvin, Yves. "Special issue on block and sublevel caving." Mining Technology 119, no. 3 (2010): 111. http://dx.doi.org/10.1179/174328610x12851618482200.

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10

Ren, Fengyu, Dongjie Zhang, Jianli Cao, Miao Yu, and Shaohua Li. "Study on the Rock Mass Caving and Surface Subsidence Mechanism Based on an In Situ Geological Investigation and Numerical Analysis." Mathematical Problems in Engineering 2018 (July 26, 2018): 1–18. http://dx.doi.org/10.1155/2018/6054145.

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To deeply understand the mechanism of the rock mass caving and associated surface subsidence during sublevel caving mining, the Xiaowanggou iron mine was selected as an engineering project case study. The study area was analyzed by means of an in situ geological investigation and numerical simulation. First, a borehole television (BHTV) system and a GPS monitoring system were used to monitor the caving process of the roof rock mass and the development of the surface subsidence; the monitoring time was thirteen months. Then, a numerical simulation was used to analyze the damage evolution of the

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11

Zhang, Jia-fan, Xiaoyu Liu, Yang Liu, Xiao-ping Shao, and Hui-mei Zhang. "Study of Top Coal Partition and Key Delayed-Action Region for Horizontal Sublevel Top Coal Caving in Deeply Inclined Seam." Mathematical Problems in Engineering 2021 (April 22, 2021): 1–10. http://dx.doi.org/10.1155/2021/8837678.

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Horizontal sublevel caving is the unique way to mine the steep and extra thick coal seams. We aim to determine reasonable height of horizontal subsection, which is crucial to ensure the output and safety of mining. For this aim, a theoretical model is established to determine the theoretical solution of elastic stress distribution in deeply inclined coal seam, and first principal stress expression is derived. And on this basis, related factors affecting the top coal caving property and key delayed-action areas are investigated. The results show that there are four zones in top coal, which are

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12

Antipin, Iurii. "Substantiation of the parameters of open stoping mining method with abandonment of unrecoverable pillars." Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal, no. 4 (June 25, 2021): 15–23. http://dx.doi.org/10.21440/0536-1028-2021-4-15-23.

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Relevance. Developing inclined ore bodies of low and uneven thickness using mining systems with caving results in great losses and dilution, deteriorating the conditions for ore gravitation. As a consequence, it becomes necessary to slice the barren rock in the lying side to form slopes with the desired angle. There are also characteristic ore losses at the dead end of the drawing drift independent of the ore body thickness, therefore acquiring a significant role under a lesser thickness. The height of the sublevels, limited by the ore body’s inclination, leads to a considerable amount of prep

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13

Danielsson, M., E. Söderström, H. Schunnesson, et al. "Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden." Journal of the Southern African Institute of Mining and Metallurgy 122, no. 3 (2022): 1–11. http://dx.doi.org/10.17159/2411-9717/1587/2022.

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Fragmentation analysis is an essential part of the optimization process in any mining operation. The costs of loading, hauling, and crushing the rock are strongly influenced by the size distribution of the blasted rock. Several direct and indirect methods are used to analyse or predict fragmentation, but none is entirely applicable to fragmentation assessment in sublevel caving mines, mainly because of the limitations imposed by the underground environment and the lack of all the required data to adequately describe the rock mass. Over the past few years, measurement while drilling (MWD) data

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14

Zhai, Xin Xian, Yan Wei Zhai, and Shi Wei Zhang. "Study on Strata Behaviors of the Coal Face with Sublevel Caving in Hugely-Thick Coal Seam in Qianqiu Coal Mine." Advanced Materials Research 671-674 (March 2013): 1150–55. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.1150.

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Qianqiu Coal Mine, Yima Coal Group Company Limited, China, has been mining the gently-inclined and hugely-thick coal seam #2-3. The overburden above the coal seam has hugely-thick conglomerate strata with more than 400m thickness, which has significant effects on the strata behaviors of the coal face with sublevel caving. Therefore, study on strata behaviors has an important practical significance to surrounding rocks control and safety production at the coal face. Using theoretical analysis and field observation methods, the following conclusions can be drawn: (1) the surrounding rocks of the

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15

SOKOLOV, Igor, Yury ANTIPIN, and Artem ROZHKOV. "MODERNIZATION OF THE MINING SYSTEM OF SMALL DEPOSITS OF RICH COPPER PYRITE ORES." Sustainable Development of Mountain Territories 12, no. 3 (2020): 444–53. http://dx.doi.org/10.21177/1998-4502-2020-12-3-444-453.

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The purpose work. Substantiation and selection of a safe and effective option of mining technology of the experimental block in the pilot industrial mining of the Skalistoe deposit. Method of research. Analysis and synthesis of project solutions, experience in mining inclined low-thickness ore bodies, economic and mathematical modeling and optimization of the parameters of options mining systems in the conditions of the experimental block. Results of research. As a result of research it was established: - the sublevel caving mining system with the parameters adopted in the project does not gua

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16

Freidin, A. M., S. A. Neverov, A. A. Neverov, and P. A. Filippov. "Mine stability with application of sublevel caving schemes." Journal of Mining Science 44, no. 1 (2008): 82–91. http://dx.doi.org/10.1007/s10913-008-0008-z.

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17

Yu, Lei. "Study on Abutment Pressure Distribution Law of Fully-Mechanized Sublevel Caving Face in Extra-Thickness." Advanced Materials Research 1094 (March 2015): 405–9. http://dx.doi.org/10.4028/www.scientific.net/amr.1094.405.

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Based on field observation, analogy simulation and theoretical analysis, the abutment pressure distribution law of fully-mechanized sublevel caving face with extra-thickness was studied. The results showed that: Different instability type of the structure ‘Combined cantilever beam-articulated rock beam’ in fully-mechanized sublevel caving roof led to cyclical changes of abutment pressure; with an invariable coal seam thickness and increasing cutting height, abutment pressure peak value tended to stabilize after reaching the maximum, but as the working face advancing its location transferred to

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18

YAKOVLEV, Nikita M. "APPLICATION OF RATING CLASSIFICATIONS TO SUBSTANTIATE THE DEVELOPMENT SYSTEM OF THE PLATO RASVUMCHORR DEPOSIT (RUSSIA)." Mine Surveying and Subsurface Use, no. 3 (2024): 34–41. http://dx.doi.org/10.56195/20793332_2024_3_34_41.

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The article presents the main classification systems of the rock massif, developed to solve the problems of the mining industry. The parameters of the rock massif that are most used in classifications are marked separately. Based on the analysis performed, a method for determining the rating of a rock mass according to the classification of Professor Dennis Laubscher (MRMR) was selected and described under the conditions of using a sublevel caving method during the development of reserves of the Plato Rasvumchorr deposit. It is shown that for the successful application of the sublevel caving m

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19

Guo, Qi Feng, and Fen Hua Ren. "Optimization and Tests on the Independent Advance of Ore Breaking with High Sublevel and Large Drift Interval." Advanced Materials Research 361-363 (October 2011): 120–24. http://dx.doi.org/10.4028/www.scientific.net/amr.361-363.120.

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According to the mining conditions and equipment level of Xingshan iron mine, optimization research on the stope structural parameters of sublevel caving was made, and finally adopted the structure parameters with 15m sublevel height and 20m drift interval. In order to find out the rational independent advance of ore breaking under 15m×20m structural parameters, theoretical arithmetic and industrial tests were carried out. The tests show that the rational independent advance of ore breaking drift interval should be 3.4m, and the optimized structural parameters of 15m×20m×3.4m has excellent eff

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20

Ивадилинова, Д. Т., Д. С. Кулжабаева, С. А. Мустафин, and Б. Хусан. "Analysis of delivery and shipment processes of ore in conditions sub-storey drilling systems." Горный журнал Казахстана, no. 12(212) (December 29, 2022): 52–57. http://dx.doi.org/10.48498/minmag.2022.212.12.006.

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Статья посвящена анализу доставки и отгрузки руды в условиях подземной добычи системой отработки подэтажными штреками с учетом дистанционного управления технологическим процессом. Анализ показал достоинства применения погрузочно-доставочных машин, оснащенных системами дистанционного управления. Для детального исследования вопроса доставки и отгрузки руды выбраны запасы Западного участка месторождения Нурказган, для сравнения приведены данные по Иртышскому руднику. По горнотехническим условиям Западного участка месторождения, а также в соответствии с анализом технологий доставки и отгрузки на а

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21

Laptev, V. V., and O. V. Belogorodtsev. "Modeling of apatite-nepheline ore drawing in sublevel caving." Mining Industry Journal (Gornay Promishlennost), no. 5S/2023 (December 20, 2023): 125–29. http://dx.doi.org/10.30686/1609-9192-2023-5s-125-129.

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The process of modeling ore drawing was implemented in a discrete environment. Values have been determined for the lateral losses in the ridges between the drill haulage workings and the frontal losses in the ridges on the floor of the drill haulage workings, as well as in the mined-out space due to mixing with diluting rocks to substandard ore grades when ore is drawn from the blocks. The amount of additional recovery of losses was determined when drawing ore from the underlying and adjacent panels of the block. The resulting planograms of ore drawing from the panels and sections of the block

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22

Rak, Zbigniew, Jerzy Stasica, Zbigniew Burtan, and Dariusz Chlebowski. "Technical Aspects of Mining Rate Improvement in Steeply Inclined Coal Seams: A Case Study." Resources 9, no. 12 (2020): 138. http://dx.doi.org/10.3390/resources9120138.

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This paper presents our experience obtained when mining the thick and steeply-inclined Seam 510 in the Polish Kazimierz-Juliusz coal mine with the use of a unique mechanical face mining system. Seam 510, which is 15–20 m thick and inclined at angles of 40°–45°, was initially treated as uneconomical because effective mining systems were not available. However, to extract high-quality coal resources, a completely mechanized variant of the sublevel caving system was designed based on standard machines and equipment applied in coal mining. Extraction was conducted top-down at the levels of the par

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23

Ladinig, Tobias, Horst Wagner, Markus Karlsson, Matthias Wimmer, and Michal Grynienko. "Raise Caving—A Hybrid Mining Method Addressing Current Deep Cave Mining Challenges." BHM Berg- und Hüttenmännische Monatshefte 167, no. 4 (2022): 177–86. http://dx.doi.org/10.1007/s00501-022-01217-3.

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AbstractCave mining progresses to depths exceeding 1000 m and ore bodies situated in competent and strong rock masses are nowadays extracted by different cave mining methods. Widely applied caving methods in massive deposits are block and panel caving, inclined caving, and sublevel caving. All caving methods have in common that rock mass caves during extraction of an ore body in a controlled way. As a result, regional stress changes occur, considerable abutment stresses form, and large-scale subsidence and significant seismic energy releases occur. Experience shows that these rock mechanics ef

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24

Guo, Li, Cai Wu Lu, and Zhen Yang. "CAD Secondary Development of Medium-Depth Hole Blasting Design System Based on Object/ARX." Applied Mechanics and Materials 65 (June 2011): 285–90. http://dx.doi.org/10.4028/www.scientific.net/amm.65.285.

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The medium-depth blasting design of underground mining needs to do a lot of data- processing of geological survey and graphics rendering. It is repetitive and tedious. This paper introduces a Medium-depth hole blasting design CAD system (MHBD) based on Object/ARX. However, the system of non-pillar sublevel caving can decrease the labor intensity, reduce design time and improve labor efficiency.

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25

Blachowski, Jan, and Steinar L. Ellefmo. "Mining Ground Deformation Estimation Based on Pre-Processed InSAR Open Data—A Norwegian Case Study." Minerals 13, no. 3 (2023): 328. http://dx.doi.org/10.3390/min13030328.

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Sublevel caving mining causes surface deformation in three distinct zones parallel to the extracted deposit. Most of the published research is focused on the extent of the caved and fracture zones. The extent of the largest, continuous deformation zone and, thus, the influence of the mine on its surroundings is not yet fully documented. This study aimed at assessing the extent of surface deformation caused by the mining of a steep iron ore deposit in Norway. For this purpose, an innovative combination of the permanent scatterer (PS) InSAR technique and line-of-sight (LOS) movement data provide

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26

Xue, Guang Hui, Er Meng Liu, Xin Ying Zhao, Bao Hua Hu, and Wei Jian Ding. "Coal-Rock Character Recognition in Fully Mechanized Caving Faces Based on Acoustic Pressure Data Time Domain Analysis." Applied Mechanics and Materials 789-790 (September 2015): 566–70. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.566.

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For the technical problems of coal and rock character recognition in fully mechanized caving faces. A method on characterization and recognition of coal and rock traits were discussed based on the time domain indexes of acoustic pressure data according to the differences of physics and mechanical parameters of coal and rock, and the differences of acoustic pressure data when coal and rock falling impact the rear beam of the sublevel caving hydraulic support. Firstly, the top coal caving experiments were carried out with mining portable vibration recorder developed by China University of Mining

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27

Suglo, Raymond S., and Seth Opoku. "An assessment of dilution in sublevel caving at Kazansi Mine." International Journal of Mining and Mineral Engineering 4, no. 1 (2012): 1. http://dx.doi.org/10.1504/ijmme.2012.047996.

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28

Eremenko, AA, VN Filippov, AI Konurin, AP Khmelinin, DV Baryshnikov, and EA Khristolyubov. "Drilling and blasting parameters in sublevel caving in Sheregesh mine." IOP Conference Series: Earth and Environmental Science 134 (March 2018): 012015. http://dx.doi.org/10.1088/1755-1315/134/1/012015.

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29

Yi, Changping, Jonny Sjöberg, and Daniel Johansson. "Numerical modelling for blast-induced fragmentation in sublevel caving mines." Tunnelling and Underground Space Technology 68 (September 2017): 167–73. http://dx.doi.org/10.1016/j.tust.2017.05.030.

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30

Navarro, Juan, Håkan Schunnesson, Rajib Ghosh, Pablo Segarra, Daniel Johansson, and José Ángel Sanchidrián. "Application of drill-monitoring for chargeability assessment in sublevel caving." International Journal of Rock Mechanics and Mining Sciences 119 (July 2019): 180–92. http://dx.doi.org/10.1016/j.ijrmms.2019.03.026.

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31

Svarovskii, B. M., and A. M. Freidin. "Underground exhaustion of ores under a pit by sublevel caving." Journal of Mining Science 32, no. 4 (1996): 335–40. http://dx.doi.org/10.1007/bf02046226.

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32

Zhang, Zong-Xian. "Lost-ore mining—A supplementary mining method to sublevel caving." International Journal of Rock Mechanics and Mining Sciences 168 (August 2023): 105420. http://dx.doi.org/10.1016/j.ijrmms.2023.105420.

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33

Liu, Xuanting, Congxin Chen, Xiumin Liu, Kaizong Xia, and Tianlong Wang. "Investigation of the Deformation Failure Occurring When Extracting Minerals via Underground Mining: A Case Study." Minerals 12, no. 8 (2022): 1025. http://dx.doi.org/10.3390/min12081025.

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Metal mines mined using the sublevel caving method often exhibit various environmental problems on the ground surface. This can affect the safety of the production process in the mining area. A numerical model using Universal Distinct Element Code has been established to investigate deformation failure giving rise to this underground mining. The calculations are combined with in-situ monitoring data collected over a period of 10 years. The results indicate that the strata movement in the footwall can be divided into two stages: an arch caving development stage and post arch caving development

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34

Sun, Mingzhi, Fengyu Ren, and Hangxing Ding. "Optimization of Stope Structure Parameters Based on the Mined Orebody at the Meishan Iron Mine." Advances in Civil Engineering 2021 (July 9, 2021): 1–14. http://dx.doi.org/10.1155/2021/8052827.

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Based on the engineering background of the Meishan iron mine with sublevel caving (SLC) method, in this work, we adopted the method for identifying the shape of mined orebody (the original location in blasted slice), which analyzed and determined reasonable stope structure parameters. In the field test, the markers were arranged in the blasted slice, the mined orebody was measured by in situ tests, and reliable data were achieved. The shape of the mined orebody was obtained through this test when the width of drift was 6 m. The mined orebody’s shape was compared with the shape of the isolated

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35

Семенцов, В. В., М. С. Добровольский, Е. В. Нифанов та М. П. Шабалин. "ГЕОМЕХАНИЧЕСКОЕ ОБОСНОВАНИЕ СИСТЕМЫ РАЗРАБОТКИ МОЩНЫХ КРУТЫХ ПЛАСТОВ С ПОДЭТАЖНЫМ ОБРУШЕНИЕМ И ВЫПУСКОМ УГЛЯ". Вестник Научного центра ВостНИИ по промышленной и экологической безопасности, № 3-2018 (25 червня 2018): 29–37. http://dx.doi.org/10.25558/vostnii.2018.02.004.

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В статье приведены результаты исследований напряженно-деформированного состояния массива горных пород и его изменений при отработке мощных крутых угольных пластов Прокопьевско-Киселевского месторождения системами с подэтажным обрушением и выпуском угля методом математического моделирования. In the article the results of researches of the stress-strain state of the rock mass and its development during the mining of the thick steep coal seams of Prokopevsko-Kiselevskoye deposit with sublevel caving mining systems are given.

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Abolfazlzadeh, Yousef, and Marty Hudyma. "Identifying and Describing a Seismogenic Zone in a Sublevel Caving Mine." Rock Mechanics and Rock Engineering 49, no. 9 (2016): 3735–51. http://dx.doi.org/10.1007/s00603-016-1017-x.

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37

Laptev, V. V., O. V. Belogorodtsev, and S. V. Lukichev. "Analysis of Ore Drawing Modes in Sublevel Caving Using Numerical Modeling." Journal of Mining Science 60, no. 6 (2024): 983–89. https://doi.org/10.1134/s1062739124060139.

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38

Wang, Jiachen, Jinwang Zhang, and Zhaolong Li. "A new research system for caving mechanism analysis and its application to sublevel top-coal caving mining." International Journal of Rock Mechanics and Mining Sciences 88 (October 2016): 273–85. http://dx.doi.org/10.1016/j.ijrmms.2016.07.032.

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39

Efremov, E. Yu, P. A. Rybnikov, and L. S. Rybnikova. "DEVELOPMENT OF DRAINAGE DESIGN OF THE HYDROGEODYNAMIC SYSTEM “CAVING ZONE – AQUIFER” CONDITIONS DUE TO SUBLEVEL CAVING METHOD." Успехи современного естествознания (Advances in Current Natural Sciences), no. 3 2023 (2023): 47–57. http://dx.doi.org/10.17513/use.38015.

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Fan, Yuan, Wei Dong Pan, Zhao Hui Wang, De Lin Li, and Wen Bo Song. "Narrow Pillar Mining Technology of Fully Mechanized Sublevel Caving Faced with Great Cutting Height in Tashan Mine." Applied Mechanics and Materials 295-298 (February 2013): 2950–53. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.2950.

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Based on the great thickness of coal seam in Tashan Mine, narrow pillar mining technology was adopted to liberate more coal resources from coal pillars. In this paper, the research status of narrow pillar technology was analyzed, and the main problems of the narrow pillar mining technique were solved by theory research. The method and technical route of this study was offered in final. The results have great reference value to the fully mechanized sublevel caving with great mining height in similar conditions.

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Nan, Hua, Tao Xu, and Zhi Dong Wei. "Application of RFPA^2D in Sublevel Caving Mining Extra-Thick Coal Seams." Materials Science Forum 575-578 (April 2008): 1246–51. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.1246.

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On the basis of suitable arrangement for the special stress surrounding and parameters selection, Realistic Failure Process Analysis 2-D (RFPA2D) numerical simulation of extra-thick coal seams’ displacement and failure is carried out. It’s proved that the numerical simulation results are consistent with the in-sit measurement results of top coal’s advance supporting stress and deep-hole displacement. So application of RFPA2D in sub-level caving mining extra-thick coal seams is reliable. It’s also proved that application of RFPA2D in sub-level caving mining can do great help to study the nature

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Li, Guanghui, Fengyu Ren, Hangxing Ding, Huan Liu, Mingzhi Sun, and Guang Li. "A Dynamic Intersecting Arrangement Model Based on Isolated Draw Zones for Stope Structure Optimization during Sublevel Caving Mining." Mathematical Problems in Engineering 2021 (January 19, 2021): 1–13. http://dx.doi.org/10.1155/2021/6669558.

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In this paper, stope structure optimization during sublevel caving mining is considered under the condition that the isolated draw zones (IDZs) are nonstandard ellipsoid, which is realized by dynamically adjusting the arrangement of IDZs and quantifying the degree of intersection of IDZs according to an ore profit and loss calculation model. A dynamic intersecting arrangement model based on IDZs was proposed, which can dynamically adjust the sublevel height and drift spacing according to the ore-rock bulk flow parameters, economic indicators, occurrence condition of the ore body, drilling mach

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43

Filippov, Vladimir, Andrey Eremenko, and Igor Mokrousov. "GEOTECHNOLOGY IMPACT ON SEISMIC ACTIVITY OF THE AREA DURING MINING PROTECTIVE PILLAR IN CONDITIONS OF SHEREGESH DEPOSIT." Interexpo GEO-Siberia 2, no. 5 (2019): 75–80. http://dx.doi.org/10.33764/2618-981x-2019-2-5-75-80.

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Analysis of blasting works during reserves mining of protective pillar of level-and-room mining and sublevel mining with application of mobile machinery is carried out. It is established that high power explosions, carried out within border of protective pillar, longtime impact on rock solid (up to 2 days and more). Each explosion forms seismic active zone in which shocks occur on the distance up to 400v and more. Converse to technology of sublevel caving with application of mobile machinery has excepted carrying out explosions with large mass of explosive materials (10t and more). Through a m

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Wang, Hongyi, and Meichang Zhang. "Cost Control of Mining Personnel Based on Wireless Communication Network from the Perspective of Operations Research." Computational Intelligence and Neuroscience 2022 (January 10, 2022): 1–11. http://dx.doi.org/10.1155/2022/9932603.

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The sublevel caving method without sill pillar is used to improve the cost of mining. The analysis is performed according to unique geographical environment and the current mining technology of the mine. The wireless communication network is used to budget and control the work cost of mining. Simulation operation about unit explosive dosage, fan-shaped deep hole interval, hole bottom distance, and collapse step distance is performed. Experiments have shown that budget and control of the cost of mining workers with wireless communication technology can manage mining data and guide the design of

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Barba, Tomás Fernando Villegas, and Erling Nordlund. "Numerical analyses of the hangingwall failure due to sublevel caving: study case." International Journal of Mining and Mineral Engineering 4, no. 3 (2013): 201. http://dx.doi.org/10.1504/ijmme.2013.053168.

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Petrov, D. N., and G. P. Neobutov. "EXPERIENCE AND PROSPECTS OF SUBLEVEL CAVING MINING OF ORE DEPOSITS IN YAKUTIA." MINING INFORMATIONAL AND ANALYTICAL BULLETIN 11, no. 24 (2017): 211–19. http://dx.doi.org/10.25018/0236-1493-2017-11-24-211-219.

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Balusa, Bhanu Chander, and Amit Kumar Gorai. "Development of Fuzzy Pattern Recognition Model for Underground Metal Mining Method Selection." International Journal of Ambient Computing and Intelligence 12, no. 4 (2021): 64–78. http://dx.doi.org/10.4018/ijaci.2021100104.

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Selection of underground metal mining method is a crucial task for the mining industry to excavate the ore deposit with proper safety and economy. The objective of the proposed study is to demonstrate the application of a fuzzy pattern recognition model for the decision-making of the most favourable underground metal mining method for a typical ore deposit. The model considers eight factors (shape, depth, dip, rock mass rating [RMR] of ore zone, RMR of footwall, RMR of hanging wall, thickness of the ore body, grade distribution), which influence the mining method, as input variables. The weigh

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Neverov, Sergey A., Anton I. Konurin, and Yuri N. Shaposhnik. "SAFETY IN SUBSTOPING-AND-CAVING IN TECTONICALLY STRESSED ROCK MASSES." Interexpo GEO-Siberia 2, no. 3 (2021): 311–21. http://dx.doi.org/10.33764/2618-981x-2021-2-3-311-321.

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Mining of a thick steeply dipping deposit using sublevel caving with end-face ore drawing in transition from open pit excavation to underground mining is considered in conditions of developed tectonics. The technology was justifed by mathematical modeling of the stress state of the rock mass using finite element method. Safe parameters of the mining system were determined by solving a variational problem with a variable degree of geomedium disturbance in the existing mining and engineering structure when depleting reserves at an advanced stoping stage. The predicted areas of stability losses f

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Han, Jia Ming. "The Research on Geological Characteristics of the Dafosi Coal Mine Company 40110 Working Face." Applied Mechanics and Materials 170-173 (May 2012): 1273–76. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.1273.

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40110 working face is arranged as the third Mechanized sublevel caving mining face in the 401 east-wing area along the coal seam by Dafosi company of the Binchang Mining Group Corporation. According to the conclusion based on the research about Binchang area coal geology not only shows the roof and floor lithology, structure, hydrology, the gas, dust features and so on but also proposes mining roadway supporting schemes and putting them into practice. Practical application shows that roadway supporting schemes effectively control the two-sided displacement and relative movement of the roof and

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Zubkov, V. P., and D. N. Petrov. "Enhancement of the extraction of freezing ore in sublevel caving in permafrost area." Mining informational and analytical bulletin, no. 12 (2020): 16–24. http://dx.doi.org/10.25018/0236-1493-2020-12-0-16-24.

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