Results 21 to 30 of about 2,553 (189)
Advances in Civil Engineering, 2019 As mining height increases, the influence of coal wall caving on safety production becomes stronger. There is no systematic and effective method to analyse the risk of coal wall caving and its slip caving depth.
Chao Li +5 more
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Research on active roof control space of fully mechanized caving support based on motion posture perception [PDF]
Meitan xuebaoThe fully mechanized top-coal caving support is a critical device that serves both as a support mechanism and an active means for top-coal caving in fully mechanized top-coal caving mining operations.
Qingliang ZENG +5 more
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Numerical and in-situ investigation on the ground behavior of the end roof in fully mechanized caving face [PDF]
E3S Web of Conferences, 2021 Fully mechanized top coal caving is a major high-yield and high-efficiency coal mining method for thick seam mining. At present, it is affected by the further popularization and application of fully mechanized caving mining because the recovery rate is ...
Zang Chuanwei +5 more
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Future underground mining at LKAB Svappavaara: potential to combine caving and stoping methods
, 2022 Two of LKAB’s Svappavaara area open pit operations, Gruvberget and Leveäniemi, nestled between Kiruna and Malmberget SLC mines, have been initially considered for transition to underground mining using SLC or block caving methods.
Saiang, David +3 more
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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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Analytical Model Determining the Optimal Block Size in the Block Caving Mining Method [PDF]
, 2015 Nowadays along with population growth, industry development, consumption of mineral resources and the fact that the reserves on hand are running out, the depth of surface and underground mines for further exploitation are increasing. During recent years,
Someehneshin, Javad +2 more
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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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Research of Caving Methods Based on Discrete Element
Gong-kuang zidonghua, 2010 The paper introduced three kinds of different methods of caving methods,namely single-interval caving,single-order caving and multi-interval caving.It used discrete element PFC3D software to simulate the three kinds of caving methods, obtained the ...
WANG Ye +3 more
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