A displacement-based back-analysis method for rock mass modulus and horizontal in situ stress in tunneling - Illustrated with a case study

doi:10.1016/j.tust.2005.12.001

	A displacement-based back-analysis method for rock mass modulus and horizontal in situ stress in tunneling - Illustrated with a case study
	Zhang, L. Q.; Yue, Z. Q.; Yang, Z. F.; Qi, J. X.; Liu, F. C.
刊名	TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
	2006-11-01
卷号	21 期号:6 页码:636-649
关键词	back-analysis displacements modulus in situ stresses 3-D FEPT field tests
ISSN号	0886-7798
DOI	10.1016/j.tust.2005.12.001
文献子类	Article
英文摘要	This paper presents a displacement based back-analysis method for the determination of rock mass modulus (E) and the horizontal in situ stress (P) perpendicular to the axis line of the tunnel excavation in hard and intact rock masses. The rock mass is assumed to respond in an isotropic and linear elastic manner. Essentially, the method is a best-fit solution of back-analysis by comparing the measured displacements near a tunnel face during excavation with those calculated using a three-dimensional finite element method. The method can be applied efficiently and effectively by iterative algorithms such as direct search technique and damping least square technique. In particular, a three-dimensional finite element pattern technique (3-D FEPT) is used to compute the theoretical displacements for saving computation time. The method is further illustrated with a case study. The case study deals with a test adit at Zhanghewan Pumped Storage Power Station in Hebei Province, North China. It is shown that the back-analyzed results of E and P are reliable and representative for the actual rock masses. (c) 2005 Elsevier Ltd. All rights reserved.
WOS研究方向	Construction & Building Technology ; Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000238867700006
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/66364]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang, L. Q.
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China 3.Beijing Hydroelect Invest & Design Inst, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, L. Q.,Yue, Z. Q.,Yang, Z. F.,et al. A displacement-based back-analysis method for rock mass modulus and horizontal in situ stress in tunneling - Illustrated with a case study[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2006,21(6):636-649.
APA	Zhang, L. Q.,Yue, Z. Q.,Yang, Z. F.,Qi, J. X.,&Liu, F. C..(2006).A displacement-based back-analysis method for rock mass modulus and horizontal in situ stress in tunneling - Illustrated with a case study.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,21(6),636-649.
MLA	Zhang, L. Q.,et al."A displacement-based back-analysis method for rock mass modulus and horizontal in situ stress in tunneling - Illustrated with a case study".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 21.6(2006):636-649.