Results 1 to 10 of about 1,845,683 (177)
Energies, 2022 Aiming at the phenomenon of a large amount of roof subsidence and rib caving in the gob-side roadway under the special “umbrella” coal pillar in isolated panel No. 325 of Yangcun Coal Mine, the stress distribution regularity of the gob-side roadway under
Yongjie Yang, Yang Zhang, Gang Huang
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Failure Mechanism of Gob-Side Roadway under Overlying Coal Pillar Multiseam Mining [PDF]
Shock and Vibration, 2021 Roadway deformation and rock burst are the two key challenges faced by the safe operation of coal mines. Aiming at the issue of large deformation of the gob-side roadway under coal pillars in multiseam mining, this study has considered the case of the ...
Hongwei Mu +4 more
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Applied SciencesA combination of theoretical analysis, numerical simulation and physical model experiments is used to explore the mechanism of pressure relief and roof blasting effects along the gob-side roadway.
Xiufeng Zhang +7 more
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Control of Gob-Side Roadway with Large Mining Height in Inclined Thick Coal Seam: A Case Study [PDF]
Shock and Vibration, 2021 The gob-side roadway of 130205, a large-mining-height working face in the Yangchangwan coal mine, was investigated in terms of the mine pressure law and support technology for large mining heights and narrow coal pillars for mining roadways. The research
Xie Fuxing
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Research on stress release for the gob-side roadway using the roof-cutting technology with a chainsaw arm [PDF]
Royal Society Open Science, 2020 The narrow pillar mining method is widely adopted for working faces in coal mines. However, in cases of an overlying hard roof, a suspended triangle roof plate or a cantilever will be formed near the goaf. At this point, the coal pillar extrusion and serious deformation will occur in the gob-side roadway.
Binwei Xia, Yang Tai, Bin Yu
exaly +6 more sources
Research on the support of roadways with different roof cutting angles in gob-side entry retaining [PDF]
Scientific ReportsGob-side entry retaining is a coal no-pillar mining technology, which can recover coal pillar resources and reduce the quantity, and cost of roadway excavation.
Xiaoyu Wu +4 more
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International Journal of Mining Science and Technology, 2021 Automatically formed roadway (AFR) by roof cutting with bolt grouting (RCBG) is a new deep coal mining technology. By using this technology, the broken roadway roof is strengthened, and roof cutting is applied to cut off stress transfer between the ...
Qi Wang +6 more
doaj +4 more sources
Study on the floor heave mechanism and control technology for the gob-side roadway in the stopping mining area of thick coal seam [PDF]
Scientific ReportsDue to the influence of the lateral abutment pressure and the protective coal pillar of the main roadway, the surrounding rock stress environment of the gob-side roadway in the stopping mining area of a thick coal seam is highly complex, making the ...
Xiaobo Hao +8 more
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Directionality of butterfly leaves and nonuniform deformation mechanism in gob-side entry driving roadway [PDF]
Journal of Mechanics, 2021 ABSTRACT Existing rock pressure theory, with the pressure-plastic zone as the core, cannot reveal the nonuniform large deformation mechanism of the surrounding rock in a deep roadway. To address this problem, the 11030 gob-side entry driving roadway of the Zhaogu No.
Ji Li, Ji Li, Wenshuo Wang
exaly +2 more sources
Energy Science & Engineering, 2023 A reasonable width of the coal pillar is very important to the surrounding rock control of the gob‐side roadway. An unreasonable width of the coal pillar will make the roadway to be located within the range of strong mining influence, leading to severe ...
Deqiu Wang +8 more
doaj +2 more sources