Results 101 to 110 of about 1,845,683 (177)
, 2011 Gob-side entry retaining is an advanced and green mining technology, which can avoid using pillar and island working face, reduce driving workload, alleviate the tension between extraction and driving, and achieve a Y-type ventilation.
Yong Kui Shi, Hui Li Lin
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Meikuang Anquan, 2021 In order to provide a theoretical basis for the deformation, damage and breaking of the lateral roof, based on elastoplastic mechanics and mine pressure theory, considering the plastic strain softening of the foundation, a two-parameter elastoplastic foundation beam model along the lateral base is established.
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, 2020 The stress concentration of gob-side entry surrounding rock is a hot topic in coal mining. In this paper, through theoretical analysis and numerical simulation, the pressure relief mechanism of the gob-side entry retaining by roof cutting and pressure ...
Zhibiao Guo +5 more
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Study and Application on the Parameters of Gob-Side Entry Retaining in Thin Seam with Limestone Roof
, 2011 The gob-side entry retaining technology can be used to not only solve the problem of intensity in successive mining but also reduce the 10,000 tons' drivage rate and improve the coal recovery.
Jia Li Qi +2 more
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工程科学与技术, 2007 :As for the coal mining roadway with bolt support, it’s the most dangerous that the roof usually falls because roof bedding separation value is too large.
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Shock and Vibration, 2015 The borehole stress-meter was employed in this study to investigate the distribution of the side abutment stress in roadway subjected to dynamic pressure.
Yao Qiangling +4 more
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Control Countermeasures of Surrounding Rock in Deep Gob-side Entry Retaining by Cutting Roof
工程科学与技术, 2019 Based on the technical principle of gob-side entry retaining formed by advanced roof cutting, this study takes non-pillar mining in deep working face of Chengjiao coal mine as the research background, and comprehensively uses methods of mechanics ...
Shangyuan CHEN +5 more
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Applied SciencesTo address the challenge of surrounding rock control in deep gob-side entry driving, the return airway of the 20203 working face of the Dahaize Coal Mine was taken as the engineering background.
Jianbing Zhao +6 more
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Reasonable Width of Coal Pillar in Gob-side Trapezoidal Roadway in Inclined Thick Coal Seam
Meikuang Anquan, 2020 To explore the reasonable pillar width of roadway along goaf in inclined coal seam, theoretical analysis, numerical simulation and industrial test are combined to carry out the research. The results show that the influence range of stress field in inclined coal seam is 12.2 m to 12.8 m by establishing the basic roof mechanics model of roadway along ...
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GeofluidsFloor heave control becomes more and more prominent in engineering practice with the increased mining depth of the working face. The gob-side entry of the 21404 working face in Hulusu Coal Mine was taken to be the engineering background to study the gob ...
Yinghao Hao +6 more
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