Results 211 to 220 of about 4,519 (226)
Characterization and dynamic evolution law of transverse fractures in the upper protected coal seam. [PDF]
Sci RepZhan K, Wang M, Ma Y.
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Study on dynamic sand collapse mechanism of weakly consolidated rock strata in thick bedrock stope in western China. [PDF]
Sci RepZhaoxing L +5 more
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Sustainability, 2022 In order to ensure the application of gob-side entry retaining by roof cutting for thick and hard sandstone roofs, the key technology of pre-split blasting was studied.
Chaowen Hu, Eryu Wang, Yongyuan Li
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Combined blasting for protection of gob-side roadway with thick and hard roof
Journal of Rock Mechanics and Geotechnical EngineeringThe deformation control of surrounding rock in gob−side roadway with thick and hard roof poses a significant challenge to the safety and efficiency of coal mining. To address this issue, a novel approach combining directional and non-directional blasting
Hongxu Song
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Sustainability, 2017 This paper presents the engineering geological properties and roof control tecnology for a thick coal seam fully-mechanized face mining with hard roof conditions (THC) at the Jinhuagong Coal Mine (JCM), northwest China.
Guowei Dong, Hong-sheng Wang, Weibin GUO
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Research on the Reasonable Width of Coal Pillar Driving along Goaf under Thick Hard Roof
Applied Sciences (Switzerland)There are fewer studies on the width of coal pillar retaining under a thick, hard roof. This paper takes the thick limestone roof in the 10110 working face of Jinniu Coal Mine as the background, taking the reasonable coal pillar width and its stability ...
Zhenfei Han +3 more
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Numerical and Field Investigations of Rockburst Mechanisms Triggered by Thick-Hard Roof Fracturing
Rock Mechanics and Rock Engineering, 2022Caiping Lu, zhi long He, Xiu-Feng Zhang
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