Influence of joint fissure occurrence on stress distribution of coal wall in large mining height [PDF]
Scientific ReportsIn order to ensure the stability of coal wall of fully mechanized mining face with large mining height, Aiming at the prominent problem that the rib spalling rate of coal wall in fully mechanized mining face with large mining height is high and is ...
Weibin Guo, Yichen Gao, Gang Wang
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Study on roadway deformation and control method under large mining height conditions [PDF]
Scientific ReportsFocusing on the S1212 working face in Ningtiaota coal mine, this study investigates a soft mold filling wall as a primary support strategy for gob-side entry retention.
Yuxiang Cao +9 more
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Lithosphere, 2023 Accurately predicting the development height of the water-conducting fracture zone (HW) is imperative for safe mining in coal mines, in addition to the protection of water resources and the environment.
Dong Feng +3 more
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Abutment Pressure Distribution Law and Support Analysis of Super Large Mining Height Face. [PDF]
Int J Environ Res Public Health, 2022 Under the condition of the shallow coal seam, the laws of roof activity after large mining height longwall face mining and prevention measures for large-area roof weighting are problems that need to be solved urgently. In the background of the super large mining height working face in the upper 108 working face of Jinjitan Coal Mine 12-2, the spatial ...
Zhang L +6 more
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Study on Surrounding Rock Control and Support Stability of Ultra-Large Height Mining Face
Energies, 2022 Surrounding rock control and support stability in the process of coal seam mining in ultra-large height mining face are the key to normal mine operation.
Sheng Wang, Xuelong Li, Qizhi Qin
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Floor Disturbance and Failure Characteristics of Super-Large Mining Height Working Face
Geofluids, 2022 The failure depth of the working face floor caused by mining is a key parameter to predict water inrush from the working face floor. Extensive research has been conducted on the floor failure zone of the working face. However, in recent years, there have
Cunjin Lu +5 more
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Research on key technologies of intelligent large mining height fully mechanized mining equipments
Gong-kuang zidonghua, 2019 In order to ensure safe and high-efficient operation of intelligent fully mechanized mining equipments and normalized application of intelligent fully mechanized mining technologies, for fully mechanized mining equipments such as shearer, hydraulic ...
ZHANG Yuliang
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Technology Research on the Fourth Panel Mining Large Height Fully-mechanized Caving Mining in Shangwan Coal Mine [PDF]
MATEC Web of Conferences, 2015 According to the characteristics of the 1-2 coal seam of Shangwan coal mine 4th panel, this research analyzed the feasibility of sublevel caving hydraulic support in the fully-mechanized mining face through estimation method and numerical simulation ...
Liu Yingjie, Wang Xiaomou
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Applied SciencesThe extensive adoption of large mining height technology and the progressive deepening of mining operations have presented formidable challenges to the safety of roadway support.
Yinghao Qu +7 more
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Trial of small gateroad pillar in top coal caving longwall mining of large mining height
International Journal of Mining Science and Technology, 2016 Abstract Coal seams in Tashan Mine of Datong Coal Group in China average 15 m thick and have been mined by the top coal caving longwall mining method of large mining height. Mining height was 3.8 m and the top coal caving height was 11.2 m. The gateroad pillar between panels was 38 m.
Huigui Li, Yongxiang Xu, Ruifu Yuan
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