Unified elasto-plastic analysis of rock mass supported with fully grouted bolts for deep tunnels

doi:10.1002/nag.3298

	Unified elasto-plastic analysis of rock mass supported with fully grouted bolts for deep tunnels
	Cui, Lan 3,4; Sheng, Qian 3,4; Dong, You-kou 2; Xie, Ming-xing 1
刊名	INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
	2021-11-14
页码	25
关键词	deep tunnels elasto-plastic analysis fully grouted bolt relative movement rock mass
ISSN号	0363-9061
DOI	10.1002/nag.3298
英文摘要	This paper presents a unified elasto-plastic analysis of rock mass supported with fully ground bolts for deep tunnels. In the analysis, depending on whether the relative movement at the grout-bolt interface is considered, two finite-difference algorithms are discussed. For each algorithm, two conditions, one when the rock bolt is inserted into the elastic area and one when it is included within the plastic area, are comprehensively investigated. In the algorithms, the initial and final states for the rock-bolt interaction are presented, and for each state, the surrounding rock mass consisting of the bolt or the plastic area is divided into a finite number of annuli through a constant radius increment. Based on this, the stress and displacement for the rock mass and the rock bolt are obtained step by step. The results of the two algorithms are verified by the analytical method and the field test data, respectively. Parametric studies were conducted to compare bolt force, rock displacement and stress components that are solved by the algorithms with and without considering relative movement. The proposed algorithms can be written into the software for guiding the rock bolt design in practical engineering.
资助项目	National Science Foundation ofChina[52009129] ; National Science Foundation ofChina[51909248]
WOS研究方向	Engineering ; Materials Science ; Mechanics
语种	英语
出版者	WILEY
WOS记录号	WOS:000718141500001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28294]
专题	中科院武汉岩土力学所
通讯作者	Dong, You-kou
作者单位	1.Taiyuan Univ Technol, Coll Civil Engn, Taiyuan, Peoples R China 2.China Univ Geosci, Coll Marine Sci & Technol, Wuhan 430074, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Cui, Lan,Sheng, Qian,Dong, You-kou,et al. Unified elasto-plastic analysis of rock mass supported with fully grouted bolts for deep tunnels[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2021:25.
APA	Cui, Lan,Sheng, Qian,Dong, You-kou,&Xie, Ming-xing.(2021).Unified elasto-plastic analysis of rock mass supported with fully grouted bolts for deep tunnels.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,25.
MLA	Cui, Lan,et al."Unified elasto-plastic analysis of rock mass supported with fully grouted bolts for deep tunnels".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS (2021):25.