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Journal articles on the topic 'Mining engineering][Mine design'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Kutovoy, Sergey N., Anatoliy V. Kataev, Denis A. Vasenin, Ilya A. Batalov, and Denis I. Svintsov. "Surveying Tasks Solution Automation in the Framework of Mining and Geological Information System Creation at PJSC "Uralkali"." Недропользование 21, no. 3 (2021): 131–36. http://dx.doi.org/10.15593/2712-8008/2021.3.5.

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The results of work on the automation of the solution of engineering problems facing the specialists of mine surveying services of the mines of PJSC "Uralkali" are presented. The developed software modules are fully integrated into the corporate mining and geological information system of PJSC "Uralkali" and are grouped into specialized software systems - automated workstations. These complexes are installed at the workplaces of various mining specialists, from the heads of technical departments to employees of departments at mines. In total, 21 software systems were developed, of which three

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2

Yang, Fan, and Xiao Dong Cheng. "Software Development in Mining Subsedence Prediction." Advanced Materials Research 760-762 (September 2013): 1967–71. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.1967.

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Long-term scientific research and production practice show that there are rules to follow in mining influence, but the amount of measurement data collation and analysis not only cost of manpower, material resources, and calculation is very prone to error. Computer to replace manual calculation, not only convenient, quick, efficient, and adopts automatic generation technology by drawing graphs, is unattainable by manual technology. Mine land reclamation in mining subsidence is expected to software research for mining design, mining area coal mine district design, land compensation, land reclama

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3

Liu, Xin Rui, Peng Chen, Yong Sheng Chen, Qun He, and Hong Bin Ma. "Research on Database and Mining-Map Automatic Generation System of Metal Mine Production Information." Applied Mechanics and Materials 321-324 (June 2013): 2587–95. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.2587.

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According to the intensive analysis of metal mine production information database and data characteristics, object-oriented database is primarily discussed to establish for metal mine production information with UML technique. Then the subsequent design idea and approach is presented on mine three-view drawing of metal mine production information system, taking the requests and rules of mapping in metal mine into account and applying the techniques of ObjectARX, to realize three dimension information visualization and automatic mapping of metal mine production information and mining design. In

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4

AO, Dan Wood. "Geology and Mining: An Introduction and Overview." SEG Discovery, no. 115 (October 1, 2018): 1–21. http://dx.doi.org/10.5382/geo-and-mining-01.

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Abstract Postdevelopment studies show that, once in operation, about 70% of mines perform below the prediction of their feasibility studies, with underperformance usually caused by deficiencies in the collection of primarily geology related data prior to designing the mine and planning its operation. A major reason for these deficiencies is probably a generally narrow understanding by many geologists of metallurgy as well as geotechnical and mining engineering. Additionally, geologists often do not appreciate the types and quantities of data required by metallurgists, geotechnical engineers, a

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Han, Bao Shan. "Principle of Well-Net Design for Coalbed Methane Exploitation in Coal Mine Area." Applied Mechanics and Materials 543-547 (March 2014): 3967–73. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.3967.

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There are abundant CBM (Coalbed Methane) in China. These CBM has caused a remarkable problem to the coal-mining in China. In order to improve the structure of Chinese energy and eliminate the risk of coal mine gas, the relevant industries and sections have implemented many explorations in CBM enriched areas. With great achievements, there are many important problems in the actions of CBM exploitation. The disadvantageous interaction of the surface CBM well and the later coal mining has been ignored at all. There are many disadvantages and defects. To solve these problems and eliminate or weake

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6

Ren, Lian Wei, and Jia Qi Guo. "Exploration and Practice on Graduation Design (Thesis) of Mine Geotechnical Engineering." Applied Mechanics and Materials 256-259 (December 2012): 3063–67. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.3063.

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For four years of university study, graduation thesis (design) is a very important teaching in university, but there are different levels of undergraduate thesis (design) quality at present, which will affect the quality of personnel training in university. Firstly this paper points out the problems in graduation thesis (design) of the mining geotechnical engineering, then the methods and measures of improving the thesis (design) quality is proposed, finally exploring and practicing on teaching optimization of the thesis (design) is discussed.

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7

Zhang, Li Li, Feng Song, Xin She Liu, Shu Qun She, Yun Wang, and Yi Fan Zeng. "Analysis on Hydrogeological Conditions of Nanlizhuang Iron Ore in China." Advanced Materials Research 955-959 (June 2014): 3053–56. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.3053.

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In allusion to mining design of succedent filling method on heavy-water deposit of Nanlizhuang iron ore, based on engineering geology, hydrogeological conditions of the mining area are studied. Through geological structure, strata and deposit hydrogeological condition were surveyed, analyzed source of water filling and main way of the ore deposit, and determined hydrogeology parameters of the mining area. It provided the theoretical basis for mining design and water inflow forecast, and will lay the foundation for safety production and production capacity of the mine.

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8

Chen, Xiao Yan, and Ke Ping Zhou. "Pass System Ore Storage Capacity Analysis Based on Logistics Theory." Advanced Materials Research 838-841 (November 2013): 1836–42. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1836.

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Based on logistics theory and borrowed ideas from logistics model inventory management, an ore logistics model of underground mine was built, and an analytical method which could be used to determine pass system storage capacity was proposed. Simulating real ore transfer process in underground mine mining system, ore input and ore output function of pass system were built, and real-time ore quantity in pass system was graphed. Through comprehensively analyzing the figure of real-time ore quantity in pass system and practical mining production, rational pass system storage capacity was calculat

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9

Wang, Hua, Chang Cai Fang, Yi Guo Shu, Li Xin Yang, De Fu Jiang, and Li Jie Huo. "Mining Design Optimization Research on the Northern Section of 8 Coal Seam in West No.1 Mining Area in Pansan Mine." Advanced Materials Research 634-638 (January 2013): 3394–403. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3394.

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Water in Lower Aquifer of Quaternary is one of the mine water inrush sources during working faces being mining in the Northern Section of 8 Coal Seam in West No.1 Mining Area. Water flowing fractured zone, F1 fault, F22-a fault and F48 fault are main water-conducting channels in mining. According to the analysis of geology and hydrographical geology of the mine area, and combined with “Water Prevention Regulation of Coal Mines” and “Regulations of pillar leaving and coal mining under building, water, railway and mail shaft and tunnel”, stope layout was optimized, i.e. the minimum waterproof co

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10

Awuah-Offei, Kwame, Sisi Que, and Atta Ur Rehman. "Evaluating Mine Design Alternatives for Social Risks Using Discrete Choice Analysis." Sustainability 13, no. 16 (2021): 8700. http://dx.doi.org/10.3390/su13168700.

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As with other engineering design tasks, mine design involves setting design objectives and constraints (the feasible solution space) and finding the optimal design alternative. Mine engineers often struggle to incorporate the preferences of local community members into their evaluation of mine design alternatives because the mining literature lacks tools to quantify such risks during mine planning. This paper presents an approach to evaluate community acceptance (i.e., community preferences for the alternatives) using discrete choice models and decision-based design during mine planning. Using

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11

Diederichs, Mark S., and Peter K. Kaiser. "Rock instability and risk analyses in open stope mine design." Canadian Geotechnical Journal 33, no. 3 (1996): 431–39. http://dx.doi.org/10.1139/t96-064.

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Modern underground mining methods often call for the excavation of large, often unsupported voids called stopes. In many cases, these are nonentry stopes, with the removal of broken rock (mucking) performed by remote control. With the risk to human safety thus reduced, stability concerns within the stopes are primarily driven by the economics of unplanned overbreak and waste rock dilution of the mined ore. In this context, it is appropriate to speak of acceptable risks of instability and to optimize design by balancing risk costes with productivity potential. Larger individual stopes generally

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12

Li, Tong, and Lin Tao. "Research on the Mining Wasteland Landscape Transformation." Advanced Materials Research 689 (May 2013): 459–62. http://dx.doi.org/10.4028/www.scientific.net/amr.689.459.

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Base on the 3R principles, the methods of the mine revegetation and landscape regeneration are found. They include the handling of abandoned mining facilities, the processing of the surface traces of the industrial production, the processing of pollutants, the transformation and reuse of abandoned mine pits, the plants landscape design, and the site characteristics of the landscape.

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Chitombo, Gideon. "Importance of Geology in Cave Mining." SEG Discovery, no. 119 (October 1, 2019): 1–21. http://dx.doi.org/10.5382/geo-and-mining-05.

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Editor’s note: The Geology and Mining series, edited by Dan Wood and Jeffrey Hedenquist, is designed to introduce early-career professionals and students to a variety of topics in mineral exploration, development, and mining, in order to provide insight into the many ways in which geoscientists contribute to the mineral industry. Abstract Cave mining methods (generically referred to as block caving) are becoming the preferred mass underground mining options for large, regularly shaped mineral deposits that are too deep to mine by open pit. The depth at which caving is initiated has increased o

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14

Amoushahi, Sina, Martin Grenon, Jacques Locat, and Dominique Turmel. "Deterministic and probabilistic stability analysis of a mining rock slope in the vicinity of a major public road — case study of the LAB Chrysotile mine in Canada." Canadian Geotechnical Journal 55, no. 10 (2018): 1391–404. http://dx.doi.org/10.1139/cgj-2017-0298.

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In recent years, several large open-pit mines have started operating in the province of Quebec in Canada, and some of the largest planned pits are located close to public infrastructure. Historically, large open-pit mining has seldom been done in many mining regions, such as the Abitibi region, where underground mines are the norm. As an integral part of achieving social acceptability of open-pit mining, the stability of mining slopes must be carefully analyzed during the design process and the presence of public infrastructure near the slopes must be adequately considered. The province of Que

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15

Wang, Hua, Zhi Qiang Liu, Hong Guang Ji, et al. "Fesibility Study on Mining Two-Confined-Water Coal Seam in North-China-Type Coalfield - Taking Shuangliu Coal Mine as the Example." Advanced Materials Research 807-809 (September 2013): 2378–88. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.2378.

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Shuangliu mine is located in the middle of Hedong coalfield, Lvliang City , Shanxi Province. It is one of the typical NorthChinaType coalfields. The upper strata of the lower-group coal seams (8#, 9# seam) have several thin-layer limestones of the Taiyuan Formation, and the underlying strata of the lower-group coal seams have thick Ordovician limestone. Water inrush accident has ever happened in other mine in its vicinity. Therefore, whether the lower-group coal seams could be mined safely is related to the medium-and long-term program and sustainable development of Shuangliu Mine. Based on ex

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16

Ghazdali, Omar, Jalal Moustadraf, Tarik Tagma, Bahija Alabjah, and Fouad Amraoui. "Study and evaluation of the stability of underground mining method used in shallow-dip vein deposits hosted in poor quality rock." Mining of Mineral Deposits 15, no. 3 (2021): 31–38. http://dx.doi.org/10.33271/mining15.03.031.

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Purpose.This article proposes to analyze and determine the mining design for shallow-dip deposits hosted in poor quality rock. Methods. We used the UBC tool to find the optimal exploitation method, the Rock mass rating (RMR) and Q-system (Q) to determine the optimal mining stope and the recommended rock support, the numerical modeling by RS2 software with a variety of geotechnical, geometrical, and technical conditions to analyze the evolution of the unstable zone width and the maximum total displacement around the stope after excavation. Findings. The optimum mining method designated by the U

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17

Bing-yuan, Hao, and Kang Li-xun. "Mine Land Reclamation and Eco-Reconstruction in Shanxi Province I: Mine Land Reclamation Model." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/483862.

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Coal resource is the main primary energy in our country, while Shanxi Province is the most important province in resource. Therefore Shanxi is an energy base for our country and has a great significance in energy strategy. However because of the heavy development of the coal resource, the ecological environment is worsening and the farmland is reducing continuously in Shanxi Province. How to resolve the contradiction between coal resource exploitation and environmental protection has become the imperative. Thus the concept of “green mining industry” is arousing more and more attention. In this

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18

He, Rongxing, Huan Liu, Fengyu Ren, Guanghui Li, and Jing Zhang. "A Fuzzy Comprehensive Assessment Approach and Application of Rock Mass Cavability in Block Caving Mining." Mathematical Problems in Engineering 2019 (July 7, 2019): 1–13. http://dx.doi.org/10.1155/2019/2063640.

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Cavability assessment is an important subject during the feasibility stages before determining whether to use block caving mining. This paper provides a fuzzy comprehensive assessment (FCA) approach based on the cavability assessment approaches and its influencing factors, which are all fuzzy. This approach combines the cavability influencing factors with engineering empirical approaches by fuzzy mathematics, which improves the applicability of the cavability assessment results. This approach is applied to assess the cavability via cores in the Luoboling copper molybdenum mine. The spatial dis

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19

Farkaš, Branimir, and Ana Hrastov. "Multi-Criteria Analysis for the Selection of the Optimal Mining Design Solution—A Case Study on Quarry “Tambura”." Energies 14, no. 11 (2021): 3200. http://dx.doi.org/10.3390/en14113200.

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Mining design is usually evaluated with different multiple-criteria decision-making (MCDM) methods when it comes to large open pit or underground ore mines, but it is not used on quarry sites. Since Croatia is mostly mining stone, the implementation of such methods in decision making of the quarry mine design is imperative but left out. In this paper, the PROMETHEE II and AHP decision-making methods are implemented on the quarry site to find out the best final quarry design contour. By implementing the MCDM methods, the best quarry model was chosen based on 22 different criteria parameters out

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20

Wang, Bo, Sitao Zhu, Fuxing Jiang, Jinhai Liu, Xiaoguang Shang, and Xiufeng Zhang. "Investigating the Width of Isolated Coal Pillars in Deep Hard-Strata Mines for Prevention of Mine Seismicity and Rockburst." Energies 13, no. 17 (2020): 4293. http://dx.doi.org/10.3390/en13174293.

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In deep mines, a reasonable design of the widths of isolated coal pillars (ICPs) is critically important, particularly for hard-strata mines. This is because the frequent occurrence of mine seismicity (MS) and rockburst in deep mines often arises from the inappropriate widths of the remnant ICPs. To address this problem, this paper takes the ICP of Yingpanhao Coal Mine in Inner Mongolia in China as the engineering case study and then presents a mechanical model to illuminate the occurrence mechanism of MS induced by the mining on both sides of ICPs. The results indicate that, after the mining

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21

Han, Jihuan, Jiuqun Zou, Chenchen Hu, and Weihao Yang. "Deflection Mechanism and Safety Analysis of Coal Mine Shaft in Deep Soil Strata." Mathematical Problems in Engineering 2019 (December 5, 2019): 1–11. http://dx.doi.org/10.1155/2019/9461742.

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The main shaft and auxiliary shaft in the Guotun Coal Mine underwent large deflections, with deflection values of 359 mm and 322 mm, respectively. These two deflections represent the first occurrence of such large vertical shaft deviations in the soil strata in China. The deflection problem has seriously affected the hoisting safety and lining safety and has become a serious impediment to the sustainable production of mines. Therefore, the deflection mechanism must be determined. For this purpose, based on mining subsidence theory, the spatial probability integral method and a more accurate ti

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Zhang, Meng, Hui He, Xin Jin, Yonglong Qu, and Hongjun Guo. "Research on Key Factors Influencing Surface Subsidence of Paste Backfilling Mining in Thick Coal Seam of Deep Mine." Advances in Civil Engineering 2021 (June 5, 2021): 1–8. http://dx.doi.org/10.1155/2021/6634331.

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The research on the key factors of surface subsidence in paste backfilling mining of thick coal seam in deep mine is a complex system engineering, which involves mining, backfilling, support, subsidence, safety, and other aspects. At present, there is no systematic research on the key factors of surface subsidence in paste backfilling mining of thick coal seam more than 6 meters in a deep mine. In this paper, field research, laboratory experiments, theoretical analysis, and other research methods are used to carry out the research about 3# coal seam under buildings in the Lu’an area. The main

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23

Li, Rong Hao, Jue Yang, and Li Long Peng. "Mine Design and Optimization of Lifting Mechanism of Dumping Truck." Advanced Materials Research 760-762 (September 2013): 1274–77. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.1274.

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Lifting mechanism is one of the most important work system. Its design quality directly influences the using performance of mining dump truck. The dissertation takes large dump truck as research object, with the knowledge of the mechanism dynamics for the top rear lifting mechanism of dump truck for innovative design,using the optimization function of MATLAB make the lifting mechanism optimal, to articulated point lifting mechanism the reasonable optimally lay out, and improves the lifting organization performance fundamentally.

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Tang, Shan Shan, and Chao Kun Wei. "Design of Monitoring System for Hydraulic Support Based on LabVIEW." Advanced Materials Research 989-994 (July 2014): 2758–60. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.2758.

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Hydraulic support is widely used under the mine while the pressure is the most important factors of its safety.In view of the defects about present pressure monitor of mining hydraulic support ,designing a mining hydraulic support pressure monitoring system based on LabVIEW.This article mainly introducing the overall structure of the system, hydraulic system principle, the LabVIEW program, data communication and interface design.Using LabVIEW collection and storage support’s real-time pressure information. On the basis of the single chip microcomputer and the LabVIEW for data processing and di

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25

Lukichev, S. V. "Digital past, present, and future of mining industry." Mining Industry Journal (Gornay Promishlennost), no. 4/2021 (August 25, 2021): 73–79. http://dx.doi.org/10.30686/1609-9192-2021-4-73-79.

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The process of introducing digital technologies in mining has an evolutionary character and began with the appearance of electronic computing machines at large enterprises, design and scientific organizations. At the initial stage, solving the tasks of mining technology with the use of computers was mainly of demonstration character. Development of works in this branch has led to differentiation of the general task into separate areas: mining-geological information systems (MGIS); geomechanical safety ensuring systems; dispatching systems; programs for solving individual tasks of mining techno

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26

Elmouttie, Marc, and Peter Dean. "Systems Engineering Approach to Slope Stability Monitoring in the Digital Mine." Resources 9, no. 4 (2020): 42. http://dx.doi.org/10.3390/resources9040042.

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Slope stability monitoring in open cut mining is increasingly based on the use of a variety of different sensors and associated analytics, each capable of providing part of the understanding required to manage complex geotechnical environments. Designing an integrated monitoring system that is both attainable and fit for purpose can therefore be particularly challenging. In this paper, a systems engineering approach based on a novel methodology is presented to design the slope monitoring system. The methodology uses the rock engineering systems (RES) approach to system decomposition for geotec

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27

Chen, Xiao Guo. "The Risk Evaluation Model of Open-Pit Mine Slope." Applied Mechanics and Materials 501-504 (January 2014): 376–79. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.376.

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This article uses the extenics and fuzzy hierarchy analysis method,on the slope stability analysis method of uncertainty is improved.At the same time,on the measured data report AnTaiBao open-pit mine for practical engineering,using the method of the north, a risk evaluation is made on the stability of slope area.Through the engineering example of calculation shows that,in this paper, the risk evaluation method is reliable and can be used to guide the slope mining design.

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Yong, Jiang. "The Dynamic Characteristic Analysis of Full Hydraulic Steering System in Large Mining Truck." Applied Mechanics and Materials 433-435 (October 2013): 59–62. http://dx.doi.org/10.4028/www.scientific.net/amm.433-435.59.

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The SGA170 mine truck was used as research object, the full hydraulic steering system and it's dynamic characteristics was simulated by the AMESim, the characteristics and simulation curve of the steering system and the steering mechanical under various conditions was obtained, which provided theoretical reference and technical support to the design and analysis of full hydraulic steering system of the heavy-duty mine truck, and has important value in the engineering.

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Du, Xue Dong, and Shuang Heng Feng. "Research and Application of a Hidden Line Removal Algorithm of Digital Mine." Advanced Materials Research 121-122 (June 2010): 354–59. http://dx.doi.org/10.4028/www.scientific.net/amr.121-122.354.

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The 3D model of mine transforms into various 2D views with hidden line removal technique, and outputs these 2D views as the standard engineering drawings to guide the production and construction of mine. Due to the complexity and specificity of mine environment, those 2D views that the general blanking algorithms generated have a lot of uncertainties, so they don’t meet the requirements of practical application. In order to meet the requirements of mining applications, according to the characteristics of mine environment, the paper designs and implements a hidden line removal algorithm, and ap

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Bai, Erhu, Wenbing Guo, Yi Tan, Guangshuai Huang, Mingjie Guo, and Zhibao Ma. "Roadway Backfill Mining with Super-High-Water Material to Protect Surface Buildings: A Case Study." Applied Sciences 10, no. 1 (2019): 107. http://dx.doi.org/10.3390/app10010107.

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As coal resources trapped under surface buildings in the Wangtaipu coal mine area impede the efficient mining of coal seams and constrain the sustainable development of coal mines, a super-high-water roadway backfill mining technique for preventing building damage was adopted. According to the control principle and theoretical calculations, an engineering design was established including the reasonable width of segment coal pillars in the working face and technical parameter design. The monitoring results after the implementation of the scheme showed that building deformation was controlled wi

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31

Liu, Zhi Hai, Qing Liang Zeng, Zai Chao Wu, and Guang Yu Zhou. "Design and Implementation of Automatic Drainage in Coal Mine." Advanced Materials Research 291-294 (July 2011): 2851–54. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.2851.

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Drainage system is one of the important sub-systems of coal mine integrative control platform[1], and is used to guarantee the safety of mining and auxiliary transportation under the ground. The functions of drainage system are defined, the network framework is designed, the start and stop procedures of the pump engine under the manual control mode and automatic control mode are described, and the determining methods based on liquid level to control several pumps in automatic mode are analyzed. By using Simense PLC module, power source module, digital module, analog module and touch screen har

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Tang, Li Fang, and Chuan Jin Wang. "Implementation of Mine Equipment Maintenance Management System Based on Web." Advanced Materials Research 756-759 (September 2013): 1240–43. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.1240.

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Based on Web of mine equipment maintenance management system,mainly to solve the mining equipment safety inspection,repair and test equipment,the existing problems of mine machinery and equipment maintenance is lack of effective management means information. Based on the introduction of mine equipment maintenance management system using database technology, network technology and the Web,this paper expounds the mine equipment maintenance management system structure,function,design,functions.

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Wijayanto, Taufiq Muhammad, Wahyu Wilopo, I. Gede Budi Indrawan, and Sunarko. "Relationship between pit slope design and coal reserve estimation in Pit X, Muara Enim, South Sumatra Province." E3S Web of Conferences 200 (2020): 02021. http://dx.doi.org/10.1051/e3sconf/202020002021.

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Mine planning is an important part of mining activity. Improper mine plan will increase production costs, non-optimal extraction of mines and safety factors that do not meet the standard. One of the most important aspects before undertaking mine plan is determining the optimal slope design as a basis for making mine pits for coal extraction. This study aims to estimate the maximum reserves that can be taken from the mine pit by taking account of the safety factor of the pit slope design. The study was conducted using drill log data and rock engineering characteristics. Analysis of slope stabil

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Zhang, Fengpeng, Qiqi Hao, Xiulong Wang, and Zhaoguo Qiu. "Design Method for Specific Charge in Deep Mining considering Influence of In Situ Stress." Advances in Civil Engineering 2021 (August 19, 2021): 1–9. http://dx.doi.org/10.1155/2021/8864723.

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In situ stress has a large influence on blasts in deep mines and should be considered in blasting design. In this study, explosion crater tests were conducted to investigate the variation of specific charges under different stress loading conditions. It was revealed that rock blasting under high stress is different from that under low stress. A correction coefficient for specific charge was defined to consider the influence of in situ stress on blasting. A quantitative relation between the correction coefficient, stress-to-strength ratio, and lateral stress coefficient was presented. Based on

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35

Jangara, H., and C. Atilla Ozturk. "Longwall top coal caving design for thick coal seam in very poor strength surrounding strata." International Journal of Coal Science & Technology 8, no. 4 (2021): 641–58. http://dx.doi.org/10.1007/s40789-020-00397-y.

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AbstractAlpu lignite field is an important coal deposit with nearly 2 billion tons of coal resources located in the middle of Turkey. The mine deposit consists of three main seams. The thickness of two of them vary from 4 to 30 m. The surrounding rock mass is very poor in terms of strength. The high clay content and weak rock mass make mechanized mining difficult. In this research, applicability of the longwall top coal caving method was investigated. The very weak strength behavior of the coal and the surrounding strata increases the importance of research in the mine site in terms of ground

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Hu, Qingfeng, Bin Lei, Kaifeng Ma, and Tiesheng Wang. "Analysis of surface mining subsidence laws under thick alluvial Quandian Mine." World Journal of Engineering 11, no. 3 (2014): 247–56. http://dx.doi.org/10.1260/1708-5284.11.3.247.

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In order to study the laws of surface subsidence due to mining coal under thick alluvium of Quandian mine, two survey lines were designed on the surface above the first face. By analyzing the position of the maximum subsidence point of the tendency survey line, the zenith angle was obtained, and the correctness of taking bedrock thickness instead of average mining depth to design the position of the trend survey line in the mining area was confirmed; and based on the analyses of the measured data, the critical size of the gob full opening in the geological and mining conditions didn't follow t

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Chaudhari, Ramkrushna, and A. G. Thakur. "Modern Conveyor Pulleys with Modified End Disc Design, Locking Device & Gearless Drive." International Journal of Innovative Technology and Exploring Engineering 10, no. 9 (2021): 93–99. http://dx.doi.org/10.35940/ijitee.i9380.0710921.

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Nowadays, in order to mine the ore economically, it became necessary to increase the tonnage of mined ore, as well as to improve the method of transporting the ore that is to be mined. Belt conveyors are essential equipment for transferring the material from one place to targeted place and conveyor pulleys are the major component of conveyor system. Such kind of conveyor system needs reliable conveyor pulleys. Different type of conveyor pulleys are used throughout the conveyor system as per their function. In this research, the agenda is on modification of present conveyor pulley design by rem

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Zhang, Qiang, Jixiong Zhang, Zhongya Wu, and Yang Chen. "Overview of Solid Backfilling Technology Based on Coal-Waste Underground Separation in China." Sustainability 11, no. 7 (2019): 2118. http://dx.doi.org/10.3390/su11072118.

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China is the world’s largest coal producer country. However, large-scale coal mining has led to severe environmental pollution issues such as surface subsidence and gangue piling up. The gangue discharging amount has ranked the first in the world and coal mine enterprises are facing enormous discharging reduction pressure. This paper summarizes the research progress of the solid backfilling mining technology and then illustrates the realistic demands and significance of implementing underground coal-waste separation. It also focuses on the technical principles, systems and key equipment of the

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Copetti Callai, Sergio, Piergiorgio Tataranni, and Cesare Sangiorgi. "Preliminary Evaluation of Geopolymer Mix Design Applying the Design of Experiments Method." Infrastructures 6, no. 3 (2021): 35. http://dx.doi.org/10.3390/infrastructures6030035.

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The use of waste materials in road construction is becoming widely spread due to economic and environmental needs. Construction and demolition waste materials and mining residues have been studied for a long time. However, the use of fine materials, mainly from mine tailing and mining residue, is still complex, as they can be used as inert materials into the mix or can become a reactive agent in geopolymer mixes. In the present paper, an experimental application of basalt powder is proposed in the geopolymerisation reaction to produce artificial aggregates. In order to understand the input and

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Liu, Chong Xian, and Yong Tao Gao. "Numerical Simulation of Slope Stability Analysis of Open Pit Coal Mine Based on MIDAS/GTS." Applied Mechanics and Materials 256-259 (December 2012): 193–97. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.193.

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Based on mining area end slope stability evaluation engineer- ing of Pingshuo East open pit coal mine in Shanxi Province, ac- cording to the status quo of the North Slope of the first mining district of the East open pit coal mine as well as engineering g- eological investigation results, this article selected a represen- tative cross-section of the North Slope,adopted processing fu- nctions of finite element analysis software MIDAS/GTS, and re- spectively analyze slope stability under three conditions of the mining area of the initial excavation,backfilling and disposal,a- nd follow-up excava

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Sun, Ying, Shu Ai Ma, Lang Huang, Huan Ming Zhou, Dong Tao Hu, and Zheng Yang. "Sandaozhuang Open-Pit Quality Block Modeling Based on Engineering Geological Profile." Advanced Materials Research 962-965 (June 2014): 959–63. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.959.

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Block model is the precondition of open-p it mine o ptimization boundary design and mining design. In this paper , after studying the ore deposit model that using the optimization boundary, p ut forward to establish ore deposit quality block model based on the proposed Sandaozhuang engineering geological profile . Using prospecting line profile CAD drawings that o btained during the exploration phase, us e two-dimensional coordinate conversion three-dimensional coordinates, the profile boundary curve smoothing, apply D elaunay triangulation and other technology to establish ore body contour mo

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Dong, Zhi Feng, Yu Zhao Zhang, Hong Li Ma, Quan Jin Kuang, and Gong Dan. "Stress and Modal Analysis for Rear Axle Housing of Mining Scraper." Applied Mechanics and Materials 541-542 (March 2014): 501–4. http://dx.doi.org/10.4028/www.scientific.net/amm.541-542.501.

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The scraper is one of the important equipment in coal mine. Because of its hard working condition, the complex force and load fluctuation and vibration during the working process, some structure failures on the axle housing of scraper took place in the coal mine. The 3D models of the axle housing were built based on the engineering prototype. The structure stress of the axle housing was calculated. The mechanical characteristics were studied for further development, which included mechanical structure, the vibration modes of the axle housing, the maximum amplitudes by modal analysis. According

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Wang, Xu Feng, Dong Sheng Zhang, Ting Feng Cui, Jin Liang Wang, and Wei Zhang. "Study on Rational Width of Entry Protection Coal-Pillar in Large Mining Height Working Face." Advanced Materials Research 413 (December 2011): 404–9. http://dx.doi.org/10.4028/www.scientific.net/amr.413.404.

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This paper demonstrates the attempt to identify a reasonable chain pillar width in the condition of large mining height, along with a case study at the gateway of No.1103 panel with large mining height in Suancigou Mine. Theoretical calculation and numerical simulation were employed as the main approaches during the research to figure out the rational width of entry protection coal-pillar, which was then proved to be capable for engineering practice. The results that derived from our research can offer technical support for spot production, and serve as references for future investigation upon

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Maniak, Krzysztof, and Remigiusz Mydlikowski. "Autonomous Instrumentation for Measuring Spontaneous Electromagnetic Emissions in Mining." Journal of Telecommunications and Information Technology 4 (December 30, 2020): 98–103. http://dx.doi.org/10.26636/jtit.2020.145320.

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This article presents the design of an innovative receiver capable of identifying electric and magnetic components of electromagnetic fields. The receiver senses and records electromagnetic disturbances generated as mine tunnels collapse. It offers excellent operating specification and the ability to sense and log magnetic and electrical component strength values in real time. The paper analyzes the data obtained with the use of a system installed in a working mine and attempts to determine hazards resulting from increased rock stress levels that, cause spontaneous EM emissions.

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Iakunchikov, E. N., and V. V. Agafonov. "DESIGN OF HIGH-PERFORMANCE MINING OF COAL MINE RECLAMATION SITES IN COMPLICATED GEOLOGICAL CONDITIONS." Ugol', no. 11 (November 8, 2018): 4–9. http://dx.doi.org/10.18796/0041-5790-2018-11-4-9.

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Emad, Muhammad Zaka, Hani Mitri, and Cecile Kelly. "Effect of blast-induced vibrations on fill failure in vertical block mining with delayed backfill." Canadian Geotechnical Journal 51, no. 9 (2014): 975–83. http://dx.doi.org/10.1139/cgj-2013-0305.

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Numerical modelling has long been used as a powerful tool for geomechanics mine design and analysis of such problems as ore dilution. Open stoping mining method with delayed backfill is generally employed for mining steeply dipping tabular ore deposits. Several authors reported that consideration of production blast vibrations on adjacent, exposed backfill faces is crucial for the effective backfill design for minimum ore dilution due to fill failure. In this study, it is shown that blast vibrations can be characterized with dynamic numerical modelling. A FLAC3D dynamic numerical model has bee

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Shi, Jian Jun, Duo Tian, and Qi Feng Zhao. "The Status Analysis and Suggestions of Graduation Practice for Undergraduates Majoring in Mining Engineering." Advanced Materials Research 962-965 (June 2014): 3037–40. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.3037.

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Graduation practice, which is carried on after the students have completed all the major courses, is an important part of practical teaching. It is the basis of graduation design and thesis. We took students to a mine in Zhang Village, located in the middle energy area of Hebei Province, and realized some problems existing in the practice of mining engineering. In this paper, we propose some measures adopted in the practice and their effects. Furthermore, we propose some suggestions for improvement.

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Liu, Bin, and Quan Sheng Liu. "Surrounding Rock Classification in Deep Roadway of Coal Mine." Advanced Materials Research 181-182 (January 2011): 242–46. http://dx.doi.org/10.4028/www.scientific.net/amr.181-182.242.

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With the increase of mining depth，most coals in China have been deep mining stage. Compared to the shallow roadway, the characteristics of deformation-failure of surrounding rock show significant differences in the deep roadway, and the deep rock features of the surrounding rock are not considered in the traditional classification of roadway. So it is needed that systematical study on the surrounding rock classification for the stability evaluation of the deep roadway to meet the demand of the support design and the construction of the deep roadway in coal mine of China. The paper puts forward

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Pollard, Jonisha, John Heberger, and Patrick G. Dempsey. "Maintenance and repair injuries in US mining." Journal of Quality in Maintenance Engineering 20, no. 1 (2014): 20–31. http://dx.doi.org/10.1108/jqme-02-2013-0008.

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Purpose – The purpose of this paper is to identify key tasks, tools, and equipment associated with maintenance and repair injuries at US mines and to provide some mitigation strategies to reduce these types of injuries. Design/methodology/approach – This study analyzed incidents resulting in injuries reported to the US Mine Safety and Health Administration from 2002 to 2011. Incident reports were limited to those occurring at mining plants, shops, yards, and aboveground locations. Incident reports were analyzed to determine which activities contributed to injuries and were due to machine maint

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Wang, Mei, Lang Liu, Liu Chen, Xiaoyan Zhang, Bo Zhang, and Changfa Ji. "Cold Load and Storage Functional Backfill for Cooling Deep Mine." Advances in Civil Engineering 2018 (July 5, 2018): 1–8. http://dx.doi.org/10.1155/2018/5435214.

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Considering the deep mining heat-hazard problem, the concept and academic idea of cold load and storage (CLS) functional backfill applied on deep mine cooling was put forward. Firstly, according to characteristics of filling mining, a method of cooling stopes with CLS phase changing backfill which is made from the backfill material with CLS phase change material (PCM) was proposed. The working process, cooling physics, and the economic and safety benefits of CLS phase changing backfill were produced. Secondly, the theory system of cooling with CLS phase changing backfill was built. The theoret

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