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Response and control technology for entry loaded by mining abutment stress of a thick hard roof
International Journal of Rock Mechanics and Minings Sciences, 2016Jianbiao Bai
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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
exaly +2 more sources
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
Yubing Gao, Hongxu Song
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Arabian Journal of Geosciences, 2021
Roof management in coal mines is a critical technology challenge to realize safe production. Dynamic disasters can be induced by a sudden collapse of the roof when encountering a thick hard roof above a coal seam. To solve this problem, directional hydraulic fracturing technology was utilized in the coal mine WP with a thick hard limestone roof.
Yongxin Sun, Yukai Fu, Tao Wang
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Roof management in coal mines is a critical technology challenge to realize safe production. Dynamic disasters can be induced by a sudden collapse of the roof when encountering a thick hard roof above a coal seam. To solve this problem, directional hydraulic fracturing technology was utilized in the coal mine WP with a thick hard limestone roof.
Yongxin Sun, Yukai Fu, Tao Wang
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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.
Weibin Guo +2 more
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Geotechnical and Geological Engineering, 2020
Strata activity is enhanced in the condition of the thick seam and large mining height, which increases the difficulties in roof management. A detailed understanding of roof structure characteristics and its movement law is a key to control the strata behavior.
Xinshuai Shi +2 more
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Strata activity is enhanced in the condition of the thick seam and large mining height, which increases the difficulties in roof management. A detailed understanding of roof structure characteristics and its movement law is a key to control the strata behavior.
Xinshuai Shi +2 more
openaire +1 more source
Moment Tensor and Stress Field Inversions of Mining-Induced Seismicity in A Thick-Hard Roof Zone
Rock Mechanics and Rock Engineering, 2023Chun-Hui Song +6 more
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