Results 41 to 50 of about 3,345,704 (190)
International Journal of Coal Science & TechnologyThe Self-formed roadways by roof cutting and pressure relief (SF-RCPR) represents a novel approach that eliminates the need for coal pillars by naturally creating roadways through Roof Cutting Pressure Relief (RCPR) technology.
Jiong Wang +6 more
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Investigation on Hydraulic Fracturing and Cutting Roof Pressure Relief Technology for Underground Mines: A Case Study [PDF]
Lithosphere, 2021 Abstract Using hydraulic fracturing for cutting roof pressure is a critical technology to protect coal pillars. In this paper, based on the engineering background of 18506 working face in the Xiqu Coal Mine, using the methods of theoretical analysis, numerical simulation, and field measurement, a reasonable coal pillar width and ...
Qingliang Chang +4 more
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Current situation of gob-side entry retaining and suggestions for its improvement in China
Meitan kexue jishu, 2023 Based on the article of “Status Quo and Suggestions for the Technology Development of Support along Gob-Side Entry Retaining in China” the work summarized the new technological development of gob-side entry retaining in China since the 21st century ...
HUA Xinzhu +5 more
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Advances in Civil Engineering, 2021 To study the optimal layout of prefabricated roof cutting line in gob-side entry retaining with roof cutting and pressure relief, based on the engineering geological conditions of 5249 working face in Beipingdong Coal Mine of Baoyuan Mining Company, the ...
Hao Wu, Chuanqu Zhu, Qingfeng Li
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Meikuang Anquan, 2021 For the large coal pillar stress concentration degree and the large roadway deformation in the process of mining in multi-lane layout face, to reduce the stress level of coal pillar, change the stress distribution ratio and transfer the stress ...
XU Junjian
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Innovative Control Technique for the Floor Heave in Goaf-Side Entry Retaining Based on Pressure Relief by Roof Cutting [PDF]
Mathematical Problems in Engineering, 2021 To solve the difficulty in controlling floor heave of a retained goaf-side roadway, a new control technique was investigated from the perspective of the pressure relief by roof cutting by combining mechanical analysis, numerical simulation, and engineering tests.
Guangyuan Yu +7 more
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矿业科学学报Existing studies on roof cutting and pressure relief mainly focus on their process parameters and engineering applications. However, they are limited in their whole-process coordinated evaluation on the appropriateness, controllability and sustainability
YANG Ke +5 more
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A Control Approach of the Roof in No-Pillar Roadway Formed by Roof Cutting and Pressure Releasing
, 2021 Roof control is one of the eternal themes of mine pressure theory, and it is also a key step of roadway formed by roof cutting. Based on the analysis of abutment pressure distribution, the viewpoint of controlling roadway roof by roof cutting distance is
Qingnan Lou +5 more
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Meikuang AnquanTo investigate the influence of roof cutting and pressure relief on the stability of overlying strata and roadway surrounding rock in deep-buried thin bedrock stope, and to realize the collaborative control of stope stability and roadway surrounding rock
Wenwei Wang +8 more
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Advances in Materials Science and Engineering, 2021 Through the analysis of the mining situation and geological data of Qidong mine and working face, the key factors affecting the roof cutting and pressure relief roadway retention along the goaf are defined.
Shuang Gong +4 more
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