中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Deformation characteristics of a roadway in steeply inclined formations and its improved support

文献类型:期刊论文

作者Wu, Guojun3; Chen, Weizhong3,4; Jia, Shanpo1; Tan, Xianjun3; Zheng, Pengqiang2; Tian, Hongming3; Rong, Chi3
刊名INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
出版日期2020-06-01
卷号130页码:9
关键词Steeply inclined Roadway Interface Support scheme Large deformation
ISSN号1365-1609
DOI10.1016/j.ijrmms.2020.104324
英文摘要Mining roadways in steeply inclined rock layers commonly experience severe deformation in form of large asymmetric deformation, roof subsidence and floor heave, which significantly threaten the stability of a roadway. Using a coal exploration roadway in Anhui Province, China as a case study, the deformation characteristics of a roadway in steeply inclined rock formations and the corresponding improved support scheme is analysed by numerical simulation. The simulation is performed using a cohesive element to consider the influence of geologic bedding plane around the roadway. The results show that: due to the spatial relationship of the roadway and the two bedding planes (i.e. interfaces), rocks above the roadway move downward along the interface, while rocks below the roadway move upward along the interface, the maximum deformation occurs along the upper left and lower right sides of the roadway surface, which accounts for the large leaning asymmetric deformation of the roadway (right inclination). An improved support scheme for the roadway is proposed, using long cables to restrain severe deformation, short cables and enclosed U-shaped steel sets to improve the ground stress state. The proposed scheme can effectively restrain floor heave, manage large asymmetrical deformation compared to the original scheme.
资助项目National Basic Research Program of China[2015CB057906] ; Hubei Provincial Natural Science Foundation of China[2018CFA012] ; Youth Innovation Promotion Association, CAS
WOS研究方向Engineering ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000536486100015
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/24222]  
专题中科院武汉岩土力学所
通讯作者Wu, Guojun
作者单位1.Northeast Petr Univ, Inst Unconvent Oil & Gas, Daqing 163318, Peoples R China
2.Shandong Univ Sci & Technol, Dept Resources & Civil Engn, Tai An 271019, Shandong, Peoples R China
3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
4.Shandong Univ, Res Ctr Geotech & Struct Engn, Jinan 250061, Peoples R China
推荐引用方式
GB/T 7714
Wu, Guojun,Chen, Weizhong,Jia, Shanpo,et al. Deformation characteristics of a roadway in steeply inclined formations and its improved support[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2020,130:9.
APA Wu, Guojun.,Chen, Weizhong.,Jia, Shanpo.,Tan, Xianjun.,Zheng, Pengqiang.,...&Rong, Chi.(2020).Deformation characteristics of a roadway in steeply inclined formations and its improved support.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,130,9.
MLA Wu, Guojun,et al."Deformation characteristics of a roadway in steeply inclined formations and its improved support".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 130(2020):9.

入库方式: OAI收割

来源:武汉岩土力学研究所

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