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Strength and failure characteristics of jointed marble under true triaxial compression
Gao, Yaohui; Feng, Xia-Ting; Wang, Zhaofeng; Zhang, Xiwei
2019
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
Pages-
AbstractThe rock structure and three-dimensional stress state play a vital role in the mechanical behaviour of rock masses. Here, a series of true triaxial compression tests (sigma(1) > sigma(2) > sigma(3)) are conducted on jointed marble (50 x 50 x 100 mm(3)) containing a natural stiff joint, taken from the China Jinping Underground Laboratory (CJPL-II) project. The purposes of this study are to investigate the joint effect and estimate the stress dependency of jointed marble. The test results show that jointed marble can fail in four distinct forms, namely, splitting or shearing of intact marble, opening of the joint or sliding along the joint, and these failure modes are influenced by the joint configuration and the minimum and intermediate principal stresses. Generally, jointed marble has more brittle post-peak behaviour than intact marble. The linear Mogi-Coulomb failure criterion can be modified to describe the strength of the jointed marble under true triaxial compression. The jointed marble strength is more sensitive to the minimum principal stress than to the intermediate principal stress. A maximum decline of 25% in strength is observed, which corresponds to a joint dip angle of 60 degrees at sigma(2) = 60 MPa and sigma(3) = 30 MPa. The link between the experimental results and in situ fracturing at CJPL-II is also demonstrated.
KeywordTrue triaxial compression test Natural stiff joint Failure modes Strength
DOI10.1007/s10064-019-01610-2
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000492343200001
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/14848
Collection岩土力学所知识全产出_期刊论文
国家重点实验室知识产出_期刊论文
Affiliation1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Gao, Yaohui,Feng, Xia-Ting,Wang, Zhaofeng,et al. Strength and failure characteristics of jointed marble under true triaxial compression[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019:-.
APA Gao, Yaohui,Feng, Xia-Ting,Wang, Zhaofeng,&Zhang, Xiwei.(2019).Strength and failure characteristics of jointed marble under true triaxial compression.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,-.
MLA Gao, Yaohui,et al."Strength and failure characteristics of jointed marble under true triaxial compression".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2019):-.
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