Elasto-plastic analysis of a circular opening considering material dilatancy and elasto-plastic coupling effects

doi:10.1080/02533839.2018.1454854

CORC > 武汉植物园 > 中国科学院武汉植物园

	Elasto-plastic analysis of a circular opening considering material dilatancy and elasto-plastic coupling effects
	Sheng, Qian 1,3; Zhu, Zeqi 1,3; Li, Jianhe 2
刊名	JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS
	2018
卷号	41 期号:3 页码:239-246
关键词	Circular opening dilatancy elasto-plastic coupling analytical solution
ISSN号	0253-3839
DOI	10.1080/02533839.2018.1454854
英文摘要	The deformation and fracture of a surrounding rock mass are important bases of underground engineering stability evaluation and bolting design. In this paper, an improved elastic-perfectly plastic-brittle model is employed to analyze the mechanical property weakening behavior of surrounding rock,including the elastic zone, plastic zone, and fracture zone. Examining a circular opening under hydrostatic pressure, material dilatancy, and elasto-plastic coupling were considered for an analytical study of stress and displacement of the surrounding rock. The influences of the supporting force, dilatancy, and elasto-plastic coupling were analyzed for a deep coal mine tunnel. It is shown that the supporting force cannot significantly change the state of the stress distribution, but it has an outstanding influence on the displacement of the surrounding rock. Dilatancy and elasto-plastic coupling can both cause a rapid increase of fractured zone deformation of the surrounding rock. Additionally, the majority of deformation within the surrounding rock was derived from expansion-related deformation of the fractured zone in a residual-strength state.
资助项目	National Basic Research Program of China[2015CB057905] ; National Natural Science Foundation of China[51279202] ; National Natural Science Foundation of China[91215301] ; National Natural Science Foundation of China[51409263]
WOS研究方向	Engineering
语种	英语
出版者	CHINESE INST ENGINEERS
WOS记录号	WOS:000431584600007
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/5122]
专题	中国科学院武汉植物园
通讯作者	Zhu, Zeqi
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China 2.Changjiang Inst Survey Planning Design & Res, Wuhan, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Sheng, Qian,Zhu, Zeqi,Li, Jianhe. Elasto-plastic analysis of a circular opening considering material dilatancy and elasto-plastic coupling effects[J]. JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS,2018,41(3):239-246.
APA	Sheng, Qian,Zhu, Zeqi,&Li, Jianhe.(2018).Elasto-plastic analysis of a circular opening considering material dilatancy and elasto-plastic coupling effects.JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS,41(3),239-246.
MLA	Sheng, Qian,et al."Elasto-plastic analysis of a circular opening considering material dilatancy and elasto-plastic coupling effects".JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 41.3(2018):239-246.