Results 11 to 20 of about 1,733 (262)
Research on roof caving mechanism and influencing factors in inclined ore body caving mining
Results in EngineeringIn the process of caving mining, the overlying strata often fall down to form a concealed goaf. The goaf of caving method is characterized by strong concealment, complex shape and unstable roof.
Xin Bai, Pengrui Zhu
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Lost-ore mining—A supplementary mining method to sublevel caving
International Journal of Rock Mechanics and Mining Sciences, 2023 Abstract Sublevel caving (SLC) is a mass mining method having high productivity and high safety. However, this method often causes a considerable amount of permanent ore loss. Interestingly, all lost ores are buried in the broken waste rocks that come mostly from the caved hanging wall and partly from the ore body in which ore and waste rock are ...
Zong-Xian Zhang
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Raise Caving—A Hybrid Mining Method Addressing Current Deep Cave Mining Challenges
BHM Berg- und Hüttenmännische Monatshefte, 2022 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.
Tobias Ladinig +4 more
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Mathematical Programming Application in Sublevel Caving Production Scheduling
Mining, 2021 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.
Soroush Khazaei, Yashar Pourrahimian
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Research on automatic memory coal caving control
Gong-kuang zidonghua, 2019 For low coal caving efficiency, poor coal caving quality and other problems existing in manual coal caving control mode of fully-mechanized top coal caving working face, an automatic memory coal caving control method was proposed by referring to memory ...
CUI Zhifang, NIU Jianfeng
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Gong-kuang zidonghua, 2020 Due to the difference between fully-mechanized caving face and single stoping process face, there would be a big error in predicting gas emission rate on fully mechanized caving face by use of AQ 1018-2006 The Predicted Method of Mine Gas Emission Rate ...
WANG Xiaopeng
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Scientific Reports, 2021 In the process of longwall top coal caving, the selection of the top coal caving interval along the advancing direction of the working face has an important effect on the top coal recovery.
Chuang Liu, Huamin Li
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Research and application of intelligent caving technology in fully mechanized working face
Gong-kuang zidonghua, 2021 The traditional top coal caving control mainly relies on manual coal caving control, which uses single-round of sequential coal caving. The working face equipped with electro-hydraulic control system mainly adopts the two-round sequential coal caving ...
WU Tong, YU Rui, LIU Qing, WEI Wenyan
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Physical model simulation of block caving in jointed rock mass [PDF]
International Journal of Mining and Geo-Engineering, 2022 Incorrect estimation of undercut dimensions in the block caving method can lead to the cessation of caving operations and loss of a large portion of deposits. Numerical modeling is one of the methods for determining the minimum caving span. Numerical and
Behnam Alipenhani +2 more
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Application of BigML in the Classification Evaluation of Top Coal Caving
Shock and Vibration, 2021 Longwall top coal caving mining is one of the main methods of mining thick coal seams in China. Therefore, carrying out the classification evaluation of top coal caving is of great significance to ensure mining success and reduce the risk of mining ...
Meng Wang +6 more
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