Two-stage analysis of interaction between strain-softening rock mass and liner for circular tunnels considering delayed installation of liner

doi:10.1080/19648189.2020.1715849

	Two-stage analysis of interaction between strain-softening rock mass and liner for circular tunnels considering delayed installation of liner
	Cui, Lan 4,5; Sheng, Qian 4,5; Dong, You-kou 3; Miao, Chen-xi 2; Huang, Jue-hao 4,5; Zhang, Aijun 1
刊名	EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
	2020-02-28
页码	26
关键词	Convergence-confinement method strain-softening behaviour support time two-stage analysis
ISSN号	1964-8189
DOI	10.1080/19648189.2020.1715849
英文摘要	A two-stage analysis of the support-rock interaction is carried out using a proposed numerical procedure. The procedure provides a simplified solution for readily obtaining the final support load and rock mass displacement that is easier to use than the conventional Convergence-Confinement Method (CCM). The procedure accounts for the strain-softening behaviour of the rock mass and the effect of delayed support installation. Based on the procedure, a method to determine the delayed distance and allowable displacement for the support installation is presented. A Modified Ground Reaction Curve (MGRC) that relates the rock mass displacement to the final support load is introduced. The effects of the rock mass quality, initial stress, support type and strain-softening, dilatancy behaviours on the delayed distance and allowable displacement are investigated. A comparison between the predictions of the MGRC and GRC is conducted. The results indicate that the influence of the rock mass quality and initial stress on the support-rock interaction is more significant than that of the strain-softening and dilatancy behaviours. An approximate support design using the GRC may be acceptable for a weak rock mass, whereas the GRC results in an overly conservative support design for an excellent rock mass.
资助项目	Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018011] ; National Natural Science Foundation of China[51909259] ; Shenzhen Key Technology RD Program[20170324]
WOS研究方向	Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000518317500001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23626]
专题	中科院武汉岩土力学所
通讯作者	Dong, You-kou
作者单位	1.Engn Technol & Res Inst, Shenzhen Rd & Bridge Grp, Shenzhen, Peoples R China 2.Taiyuan Univ Technol, Coll Architecture & Civil Engn, Taiyuan, Peoples R China 3.China Univ Geosci, Coll Marine Sci & Technol, Dept Marine Engn, Wuhan 430074, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Cui, Lan,Sheng, Qian,Dong, You-kou,et al. Two-stage analysis of interaction between strain-softening rock mass and liner for circular tunnels considering delayed installation of liner[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2020:26.
APA	Cui, Lan,Sheng, Qian,Dong, You-kou,Miao, Chen-xi,Huang, Jue-hao,&Zhang, Aijun.(2020).Two-stage analysis of interaction between strain-softening rock mass and liner for circular tunnels considering delayed installation of liner.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,26.
MLA	Cui, Lan,et al."Two-stage analysis of interaction between strain-softening rock mass and liner for circular tunnels considering delayed installation of liner".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING (2020):26.