Results 1 to 10 of about 1,488 (167)
Study on the technology and application of cooperative roadway protection with roof cutting pressure relief and CO2 mineralization and filling [PDF]
Scientific ReportsExploring the possibility of the application of roof cutting pressure relief and filling support collaborative roadway protection technology has important forward-looking significance for deep coal mine mining.
Li Hongjian
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Applied Sciences (Switzerland)The phenomenon of crushing the support of the hard roof of a coal seam occurs occasionally during the coal mining process. However, making the hard roof fall is difficult due to its good integrity and high strength.
Hanlin You
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Applied Sciences (Switzerland)China’s roof-cutting and pressure relief gob-side entry retaining (RCPR-GER) technology provides an efficient non-pillar mining solution that significantly enhances coal recovery.
Xiaojing Feng, Baisheng Zhang
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Analysis of Overburden Structure and Pressure-Relief Effect of Hard Roof Blasting and Cutting [PDF]
Advances in Civil Engineering, 2019 When studying the pressure-relief effect of hard roof blasting and cutting, the roof-cutting position and angle obviously affect the stability of the rock surrounding the gob-side entry (GSE).
Hao Liu +4 more
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Research on surrounding rock control technology of roof cutting and pressure relieving for roadside filling in gob-side entry retaining of large mining height panel [PDF]
Scientific ReportsThis article takes the transportation channel of the 2507 working face as the engineering background to carry out the analysis of the surrounding rock failure mechanism of the roadside filling in gob-side entry retaining of large mining height panel, and
Lu Weiyong +5 more
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The entry retained along gob side with small coal pillar and its surrounding rock control: a case study [PDF]
Scientific ReportsIn order to effectively control the large deformation of coal pillar and roadway during entry retained along gob side with small coal pillar, taking 1311 and 1312 working faces of a coal mine in Shanxi Province as engineering background, the structural ...
Lei Li +5 more
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Energies, 2022 According to the development requirements of green mining of coal resources, it is imperative to improve the extraction rate of coal and the application of safe and efficient mining technology.
Shengrong Xie +8 more
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Meikuang Anquan, 2021 In this paper, according to the current situation of fast deformation, large deformation amount and complicated deformation method of surrounding rock in dynamic pressure roadway, using field test and theoretical calculation method, the hydraulic roof ...
YANG Zheng, DING Yanxiong, GAO Xiaojun
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Meikuang Anquan, 2022 In order to realize the smooth collapse of high-strength composite roof in 1311 working face of Zhaozhuang Coal Industry company and avoid strong ground pressure disaster caused by large-area roof suspension, firstly, the composite pressure relief ...
SI Ruijiang +7 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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