Experimental study on the acoustic emission response and permeability evolution of tunnel lining concrete during deformation and failure

doi:10.1080/19648189.2020.1799245

	Experimental study on the acoustic emission response and permeability evolution of tunnel lining concrete during deformation and failure
	Shi, Linken 1,2; Zhou, Hui 1,2; Gao, Yang 1,2; Lu, Jingjing 1,2; Li, Qiantao 3
刊名	EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
	2020-07-29
页码	20
关键词	Tunnel lining acoustic emission permeability deformation
ISSN号	1964-8189
DOI	10.1080/19648189.2020.1799245
英文摘要	Due to long-term coupling of ground stress and water pressure during operation processes, lining concrete will experience different degrees of cracking and spalling, which seriously affect the safety of tunnels during service. In this paper, lining concrete seepage tests under different confining pressures are performed; the mechanical properties and acoustic emission (AE) responses during the loading process and the relationship between load-induced plastic deformation and lining concrete specimen permeability are studied. The plastic internal variable definition is introduced to characterize concrete specimen plastic deformation and is calculated after unloading. Different initial stress states and stress levels during loading and unloading processes affect pore and fissure development in lining concrete. The peak intensity increases with increasing confining pressures, and deformation parameter variation has elastoplastic coupling characteristics. AE parameters and axial stress show good agreement. The AE signal of the samples shows a transition from the Kaiser effect to the Felicity effect before the peak, indicating that AE can be an effective means of monitoring internal sample damage. A power function relationship can represent the relationship between the initial permeability and confining pressure, and the permeability evolution model of concrete samples in the plastic phase is established after the initial yielding.
资助项目	National Natural Science Foundation of China[41941018] ; National Natural Science Foundation of China[51709257] ; Wuhan Yellow Crane Talents (Science) Plan of China ; Hubei Province Natural Science Foundation Innovation Group[2018CFA013]
WOS研究方向	Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000555127700001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24588]
专题	中科院武汉岩土力学所
通讯作者	Zhou, Hui
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.China Railway 11th Bur Grp 3th Engn Co Ltd, Shiyan, Peoples R China
推荐引用方式 GB/T 7714	Shi, Linken,Zhou, Hui,Gao, Yang,et al. Experimental study on the acoustic emission response and permeability evolution of tunnel lining concrete during deformation and failure[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2020:20.
APA	Shi, Linken,Zhou, Hui,Gao, Yang,Lu, Jingjing,&Li, Qiantao.(2020).Experimental study on the acoustic emission response and permeability evolution of tunnel lining concrete during deformation and failure.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,20.
MLA	Shi, Linken,et al."Experimental study on the acoustic emission response and permeability evolution of tunnel lining concrete during deformation and failure".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING (2020):20.