Results 21 to 30 of about 823 (175)
2D Semimodel of Full‐Section Anchorage in Thick Soft Rock Roadway [PDF]
Shock and Vibration, 2018 This paper focuses on the reinforcement effect of full‐face anchorage in thick soft rock roadway. A 2D semimodel of full‐face anchorage in roadway with thick surrounding soft rock was proposed firstly by transforming the confinement effect of the excavation face in the longitudinal direction as the virtual internal support force at the circumferential ...
Xianzhou Lyu +4 more
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Study on the Upper Limit of Roof Failure in Soft Rock Roadway
Shock and Vibration, 2023 This study addresses the issue of large deformation in soft rock roadways, using the 50213 tailgate of Guantun Coal Mine as a case study. Field investigations were conducted to assess the condition of roadway bolts, anchor cables, and the internal damage characteristics of the surrounding rock.
Jie Zhang +6 more
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Application and Principle of Bolt-Mesh-Cable Control Technology in Extremely Soft Coal Seam Roadway
Geofluids, 2023 The extremely soft coal seam roadway has the problems of low surrounding rock strength and difficult support. Based on the engineering background of the mining roadway in the extremely soft coal seam of the Quandian coal mine, this paper adopts the ...
Fengfeng Wu +9 more
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Failure mechanisms of soft rock roadways in steeply inclined layered rock formations [PDF]
Geomatics, Natural Hazards and Risk, 2018 In recent years, with the increasing depth of coal mining around the world, traditional shallow geology mechanics are no longer suitable for the research on deep geological problems. In terms of deep mining, soft rock roadways in inclined rock formations show different deformation types compared with soft rock roadways in shallow horizontal strata ...
Zhigang Tao +6 more
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Applied Sciences, 2022 The coal resources in the coal-rich area of western China are mostly located in the late diagenetic Cretaceous and Jurassic strata. In this paper, a study on the support of soft rock roadways was carried out in the background of the soft rock track ...
Liu Zhu +4 more
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Shock and Vibration, 2018 In order to study the deformation mechanism of soft rock roadway in underground mines, it is necessary not only to study the influence of the dynamic disturbance caused by the cyclic mining blasting vibration on the stability of the soft rock roadway but
Hong-di Jing, Yuan-hui Li, Kun-meng Li
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Geofluids, 2022 In order to study the influence of the softening and swelling of weakly cemented soft rock on the stability of roadway surrounding rock, based on the background of the general return airway in the south wing of Yuwu coal mine, 4 different schemes are ...
Yan Li, Chao Ma, Lianying Zhang, Bing Li
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Meikuang Anquan, 2021 In order to study the reasonable support technology of weakly cemented soft rock roadway under water spraying condition, the 12307 return airway of Selian No.2 mine was taken as the background.
HAO Ming, PAN Xiahui, ZHANG Boyang
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Energies, 2020 Pingdingshan mining area is one of the typical deep mining areas in China, and most of the mines in this area are troubled by the difficulties of the deep-soft-rock roadway support.
Qingxian Huang +4 more
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SN Applied Sciences, 2023 With the development of deep mining of coal resources, the problem of deep roadway management is becoming increasingly prominent. This study aims to analyze the deformation and failure mechanism of deep-buried soft rock roadway under the influence of ...
Jian Li +6 more
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