Influence of Loading and Unloading Stress Paths on the Deformation and Failure Features of Jinping Marble Under True Triaxial Compression

doi:10.1007/s00603-020-02104-4

	Influence of Loading and Unloading Stress Paths on the Deformation and Failure Features of Jinping Marble Under True Triaxial Compression
	Feng, Xia-Ting 2; Xu, Hong 2; Yang, Chengxiang 2; Zhang, Xiwei 2; Gao, Yaohui 1
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2020-07-01
卷号	53 期号:7 页码:3287-3301
关键词	True triaxial compression test Loading and unloading Stress path Bearing capacity Deformation Failure mechanism
ISSN号	0723-2632
DOI	10.1007/s00603-020-02104-4
英文摘要	To study the difference in the failures of laboratories #7 and #8 of the China Jinping Underground Laboratory Phase II (CJPL-II), different loading and unloading stress path tests were carried out under a true triaxial compression condition based on the measured in situ stress of CJPL-II. The strength, deformation and failure mechanisms of Jinping marble under different stress paths were thoroughly investigated. The results showed that under the same stress state as that at sample failure, the bearing capacity and deformation of the unloading stress path were greater than those of the loading stress path. The bearing capacity and deformation in the sigma(2)and sigma(3)directions of stress path II and stress path III were similar, and the others decreased from stress path IV to stress path V under unloading conditions. The failure mode results reflect the violence of the unloading failure. The failure features and mechanisms of different stress paths were analysed though the acoustic emission (AE) ring, cumulative energy and strain energy trend. This research may provide a reference for the excavation and support of deep underground works.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000544654600021
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24473]
专题	中科院武汉岩土力学所
通讯作者	Feng, Xia-Ting
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Feng, Xia-Ting,Xu, Hong,Yang, Chengxiang,et al. Influence of Loading and Unloading Stress Paths on the Deformation and Failure Features of Jinping Marble Under True Triaxial Compression[J]. ROCK MECHANICS AND ROCK ENGINEERING,2020,53(7):3287-3301.
APA	Feng, Xia-Ting,Xu, Hong,Yang, Chengxiang,Zhang, Xiwei,&Gao, Yaohui.(2020).Influence of Loading and Unloading Stress Paths on the Deformation and Failure Features of Jinping Marble Under True Triaxial Compression.ROCK MECHANICS AND ROCK ENGINEERING,53(7),3287-3301.
MLA	Feng, Xia-Ting,et al."Influence of Loading and Unloading Stress Paths on the Deformation and Failure Features of Jinping Marble Under True Triaxial Compression".ROCK MECHANICS AND ROCK ENGINEERING 53.7(2020):3287-3301.