IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Study on deformation failure mechanism and support technology of deep soft rock roadway
Li, Guang1,2,3; Ma, Fengshan1,2; Guo, Jie1,2; Zhao, Haijun1,2; Liu, Gang1,2,3
2020
Source PublicationENGINEERING GEOLOGY
ISSN0013-7952
Volume264Pages:15
AbstractThe roadway support has always been a difficult problem in the mining engineering, especially in the deep soft rock roadway, whether it can provide endurable and effective support directly affects the safety production and sustainable development of the mine. In order to solve the supporting issues, it is necessary to make the deformation failure mechanism of deep soft rock roadway clear. This paper describes a case study of the deformation failure mechanism and support technology of deep roadway with soft rock mass in No.2 mine zone of Jinchuan mine that is located in Gansu Province, China. Based on a detailed field investigation and previous research experience, the modes, influencing factors, laws and mechanisms of deformation failure in the roadway are summarized. Then the primary combined supporting scheme "double layer bolt-mesh-shotcrete and U-shaped steel" is evaluated through numerical simulation calculation and onsite experiments. To make up for the shortcomings of the primary support, an improved combined supporting scheme "double layer long bolt-mesh-shotcrete and CFST (concrete filled steel tube)" is proposed. The results of numerical simulation, field monitoring and economic analysis show that the new support can control the deformation of the roadway effectively and has a high cost performance. Finally, several suggestions for supporting in deep soft rock roadway are put forward, aiming at serve as a reference for other engineering.
KeywordDeformation failure of roadway Soft rock FLAC(3D) CFST Deep underground engineering
DOI10.1016/j.enggeo.2019.105262
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordCOAL-MINE ; CONCRETE ; TUNNEL ; SYSTEM ; STEEL ; MASS
Language英语
Funding ProjectNational Natural Science Foundation of China[41831293] ; National Natural Science Foundation of China[41877274] ; National Natural Science Foundation of China[41772341]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000513985500037
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95648
Collection页岩气与地质工程院重点实验室
Corresponding AuthorMa, Fengshan
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Guang,Ma, Fengshan,Guo, Jie,et al. Study on deformation failure mechanism and support technology of deep soft rock roadway[J]. ENGINEERING GEOLOGY,2020,264:15.
APA Li, Guang,Ma, Fengshan,Guo, Jie,Zhao, Haijun,&Liu, Gang.(2020).Study on deformation failure mechanism and support technology of deep soft rock roadway.ENGINEERING GEOLOGY,264,15.
MLA Li, Guang,et al."Study on deformation failure mechanism and support technology of deep soft rock roadway".ENGINEERING GEOLOGY 264(2020):15.
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