Energies, 2023 Due to their tense mining succession relationship, gob-side roadways may undergo significant deformation under multi-mining pressure. In this article, many methods, such as on-site research, a theoretical analysis, a numerical simulation and an ...
Deqiu Wang +11 more
doaj +5 more sources
Study on Mechanism and Control Technology of Asymmetric Floor Heave in a Deep Soft Rock Main Roadway
Geofluids, 2022 Considering the serious asymmetric deformation and failure of the floor of 1# main roadway in Wanglou Coal Mine, the mechanism of roadway asymmetric floor heave was studied through on-site investigation, theoretical analysis, numerical simulation, and on-
Fulian He +5 more
doaj +3 more sources
Mechanism and Control of Asymmetric Floor Heave in Deep Roadway Disturbed by Roof Fracture
Sustainability, 2023 In view of the serious problem of bottom-drum damage in deep mining along empty roadways, the asymmetric bottom-drum damage characteristics and control mechanisms of deep mining along an empty roadway were studied using the trackway of the 11060 working face in Zhao Gu II mine as the research background.
Guojun Zhang, Yupeng Shen
exaly +3 more sources
Mechanism and control strategies of asymmetric floor heave under dynamic pressure in roof-cutting gob-side entry retaining: a case study [PDF]
Scientific ReportsRoof cutting for gob-side entry retaining actively modifies the structural configuration of the roof and the two ribs, which intensifies the inherent asymmetry in both the surrounding rock structure and the stress distribution.
Haohao Wang +6 more
doaj +3 more sources
Mechanism and control strategies for asymmetric floor heave in extra-thick coal seam roadways under high stress [PDF]
Scientific ReportsTo address the intense stress evolution and severe floor heave in roadways of extra-thick coal seams, this study investigates the catastrophic evolution laws and mechanisms of medium-hard floor strata using the 122,110 working face of Caojiatan Coal Mine
Jie Zhang +7 more
doaj +3 more sources
Mechanism and control of asymmetric floor heave in thick-seam gob-side roadways with staggered-elevation negative coal pillar layout [PDF]
Scientific ReportsAsymmetric floor heave in gob-side entries of thick coal seams is controlled by rib-to-rib vertical-stress imbalance acting together with in-situ horizontal stress.
Binyu Liu +5 more
doaj +3 more sources
Mechanism and prevention measures of asymmetric floor heave in mining roadway of Huipodi Coal Mine
矿业科学学报, 2020 Taking Huipodi coal mine as the engineering background, the asymmetric deformation mechanism of the mining roadway under the island coal pillar was studied by theoretical analysis, numerical simulation and field measurement, and the corresponding floor ...
Zhao Hongbao +5 more
doaj +2 more sources
Mechanism and control measures for floor heave in gob-side entry of weakly cemented soft rock [PDF]
Scientific ReportsWeakly cemented soft rock goaf-side entry, as a typical extraction entry, faces the characteristics of low Surrounding Rock strength and water-induced softening.
Fenghai Yu +3 more
doaj +2 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
doaj +2 more sources
Floor heave mechanism in water-rich soft rock roadways and a DS-IBA control approach
Geomatics, Natural Hazards & Risk, 2022 Severe floor heave in underground soft rock roadways heavily affects mine safety and production efficiency. In the present study, the context of the Shanghaimiao mining area is analyzed as the research object.
Wenli Zhai +5 more
doaj +3 more sources