Numerical Investigation on Zonal Disintegration Mechanism around Deep Underground Openings
Joint Authors
Jia, Peng
Zhu, Wan-Cheng
Xu, Tao
Zuo, Yu-Jun
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-12
Country of Publication
Egypt
No. of Pages
21
Main Subjects
Abstract EN
Three-dimensional numerical tests have been conducted to investigate the failure process of surrounding rock mass around circular and U-shaped tunnel at depth.
Different failure modes of deep underground openings have been reproduced.
The influence of different shapes and sizes of tunnel section, as well as the direction of the maximum principal stress, on zonal disintegration was analyzed.
Numerical simulations show that failure modes and load-bearing capacity of tunnel depend on the direction of the maximum principal stress.
The zonal disintegration around deep underground openings is a phenomenon that only occurs under some special conditions.
Firstly, there must be a higher horizontal tectonic stress along the axial direction of tunnel; secondly, the radius of curvature of tunnel should be large enough to induce the tensile stress higher than tensile strength of rock mass.
Therefore, the direction of tunnel axis as well as the direction and the size of tectonic stress should be carefully considered during tunnel design.
American Psychological Association (APA)
Zuo, Yu-Jun& Jia, Peng& Zhu, Wan-Cheng& Xu, Tao. 2013. Numerical Investigation on Zonal Disintegration Mechanism around Deep Underground Openings. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-21.
https://search.emarefa.net/detail/BIM-507183
Modern Language Association (MLA)
Zuo, Yu-Jun…[et al.]. Numerical Investigation on Zonal Disintegration Mechanism around Deep Underground Openings. Advances in Mechanical Engineering No. 2013 (2013), pp.1-21.
https://search.emarefa.net/detail/BIM-507183
American Medical Association (AMA)
Zuo, Yu-Jun& Jia, Peng& Zhu, Wan-Cheng& Xu, Tao. Numerical Investigation on Zonal Disintegration Mechanism around Deep Underground Openings. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-21.
https://search.emarefa.net/detail/BIM-507183
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-507183