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  4. 中国科学院页岩气与地质工程重点实验室
Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network

文献类型：期刊论文

作者Wei, Siyu1; Li, Yanyan2; Shang, Yanjun3; Sun, Yuanchun4; Li, Kun5
刊名ENVIRONMENTAL EARTH SCIENCES
出版日期2022-02-01
卷号81期号:3页码:13
关键词Fracture In-situ stress Discrete fracture network Surrounding rock stability
ISSN号1866-6280
DOI10.1007/s12665-021-10145-3
英文摘要Underground excavation often encountered rock masses embedded with pre-existing fractures. Conventional excavation analysis was generally based on a continuum description. In this study, to investigate the influence of randomly distributed discrete fractures on underground excavation, a finite element modeling approach based on a three-dimensional (3D) discrete fracture network (DFN) was utilized. The influence of fracture parameters including fracture intensity, dip angle and strike on the surrounding rock stability was considered in the simulation. The results suggested that fractures caused complexity in terms of the deformation behavior of rock masses around the underground cavern, facilitated the instability of surrounding rock. The intensity, dip angle and strike of fractures had different effects on the stress, displacement and failure modes of the jointed rock masses. The fracture intensity mainly affected the magnitudes of the induced stress and displacement of surrounding rock masses: a larger stress concentration and heterogeneous distribution were more likely to occur in rock masses with lower fracture intensity. While the dip angle and strike of fractures showed more impact on the distribution of displacement and failure modes of surrounding rock masses, especially for those on the roof and sidewall.
WOS关键词TUNNEL ; ISSUES
资助项目National Natural Science Foundation of China (NSFC)[41602327]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
语种英语
WOS记录号WOS:000745452700002
出版者SPRINGER
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
源URL[http://ir.iggcas.ac.cn/handle/132A11/103999]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Li, Yanyan
作者单位1.China Geol Survey, Oil & Gas Survey, Beijing 100083, Peoples R China
2.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
4.China Railway Design Corp, Tianjin 300251, Peoples R China
5.Minist Water Resources, Gen Inst Water Resources & Hydropower Planning &, Beijing 100120, Peoples R China
推荐引用方式
GB/T 7714		 Wei, Siyu,Li, Yanyan,Shang, Yanjun,et al. Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network[J]. ENVIRONMENTAL EARTH SCIENCES,2022,81(3):13.
APA Wei, Siyu,Li, Yanyan,Shang, Yanjun,Sun, Yuanchun,&Li, Kun.(2022).Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network.ENVIRONMENTAL EARTH SCIENCES,81(3),13.
MLA Wei, Siyu,et al."Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network".ENVIRONMENTAL EARTH SCIENCES 81.3(2022):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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