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Research on overburden structural characteristics and support adaptability in cooperative mining of sectional coal pillar and bottom coal seam [PDF]
Scientific ReportsIn the mining process of the II1 coal seam at Zhaogu No. 2 coal mine, a method of stratified mining is employed, leaving relatively wide coal pillars in sections.
Du Feng +6 more
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Migration law of respirable dust on a super-long fully mechanized double-shearer working face
International Journal of Mining Science and Technology, 2016 Abstract In order to understand the migration law of respirable dust and gain reasonable design parameters for dust control on a super-long double-shearer fully mechanized working face, this paper describes research carried out using a numerical simulation package (Fluent) based on gas-solid coupling dispersed multiphase flow model and field ...
Yong Yuan
exaly +2 more sources
Digital coal seam-based precision mining system for fully mechanized working face
Gong-kuang zidonghua, 2021 The current automatic coal mining technology with memory cutting as the core technology cannot perceive the changes of geological conditions of the working face autonomously, and the shearer can hardly realize automatic height adjustment control ...
LI Xu1 +4 more
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Coal mine intelligence，mine 5G and network hard slicing technology
Gong-kuang zidonghua, 2021 In order to reduce the number of operators in the working face of coal mines, an unmanned 5G ground remote control method for working face is proposed.
SUN Jiping
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Application of Real-time Pressure Monitoring System of Fully Mechanized Working Face
Gong-kuang zidonghua, 2011 The paper introduced design of a real-time pressure monitoring system of fully mechanized working face taking 120204 fully mechanized working face of Yangchangwan Coal Mine as example.
WANG Xin-wen, LIU Yun-xia
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Meikuang Anquan, 2021 Aiming at the problem of over-limit gas in the return air corner of the “U” type downward ventilation fully mechanized caving face in Baode Coal Mine, the law of gas migration in the stope and goaf was studied. Using Fluent numerical simulation software
ZHANG Zenghui, XUE Yanping
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Geofluids, 2021 The deformation control of the surrounding rock during gob-side entry driving along deeply fully mechanized caving island working face is one of the main bottlenecks affecting the successful and efficient production in modern mining.
Fei Liu, Yongsheng Han
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Sudden change mechanism of mine pressure in fully mechanized caving face and its countermeasures
Meikuang Anquan, 2022 In view of the sudden change of mine pressure in 226 upper 02 fully mechanized caving face of Huangyuchuan Coal Mine, the mechanism and countermeasures of sudden change of mine pressure in fully mechanized caving face are studied by using the methods of
LI Yong, WANG Zhuoying
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UDEC Numerical Analysis for Surface Subsidence Characteristics Under Different Mining Methods
Meikuang Anquan, 2020 UDEC is used to analyze the surface subsidence characteristics under different steps of fully mechanized and layered mining face. The research results show that the trend of surface subsidence in the lower layer mining face and the fully mechanized ...
LIU Zhaoxing
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Shock and Vibration, 2021 To study the problems of dynamic load pressure and frame pressure caused by the concentration of stress by coal extraction pillars during the mechanized short-distance mining of goaves in shallow coal seams, a frame pressure accident, in the Shendong ...
Haifeng Zhou +3 more
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