Results 41 to 50 of about 7,615,775 (267)
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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Research status of intelligent technology of shearer in fully mechanized working face
Gong-kuang zidonghua, 2022 This paper introduces the research status of intelligent technology of shearer at home and abroad. Since the 1990s, the intelligent technology of shearers has entered a mature stage of development abroad, and leading innovations have been made in shearer memory cutting, coal and rock identification, airborne main control software and remote monitoring.
ZHAO Yihui, ZHAO Youjun, ZHOU Zhan
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Gong-kuang zidonghua, 2016 In order to study evolution of real-time working resistance of hydraulic support with roof breaking in fully-mechanized working face of medium-thickness coal seam, a mechanical model of main roof was established based on elastic foundation beam, and law of main roof movement was analyzed.
CHEN Lei
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Ground pressure behavior law at fully-mechanized face in Fenxi-ShuGuang coal mine [PDF]
, 2009 In this paper, based on field observations and theoretical analysis, we discussed the ground pressure behavior law and its characteristic at fully-mechanized face and the material roadway of 10# seam in Fenxi-Shuguang coal mine.
Bai-sheng, Nie +9 more
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AIP Advances, 2020 Dust seriously affects the safe production of coal mines, and a high dust concentration operating environment is harmful to the health of miners. It is necessary to take dust reduction measures on the working surface.
Zhongliang Lu +2 more
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Research progress and prospect of wet dust control technology in fully mechanized excavation face
Meikuang Anquan, 2023 The ventilation of fully mechanized roadway in coal mine is easy to cause the rapid diffusion of dust, which makes it more difficult to control dust pollution. In order to improve the working environment of fully mechanized coal mining face, the progress
ZHU Xiaotong +5 more
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Gong-kuang zidonghua, 2020 In the context of intelligent fully mechanized caving and mining, it is important to consider not only the cutting by the shearer, but also the coal caving at the back of the support and top coal recovery.
HAN Xiuqi +4 more
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Study on the Structural System of Roof in Fully Mechanized Top Coal Caving
, 2011 Based on the structural characters of roof in fully mechanized top coal caving, mechanical analysis, mechanical calculation and simulation experiment were used to explore the particularity of roof structure in fully mechanized top coal caving.
Jie Shen +5 more
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Meikuang Anquan, 2020 In order to improve the top coal resources at both ends of fully mechanized top coal caving face in extra-thick seam and the recovery rate of coal resources during the initial caving, reduce the impact of initial weighting on the working face during the
SUN Zhenping
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