Determining the Cause of Damages in a Multiarch Tunnel Structure through Field Investigation and Numerical Analysis
Publication: Journal of Performance of Constructed Facilities
Volume 31, Issue 3
Abstract
A case of damages in the secondary lining of a multiarch tunnel is studied by field investigation and numerical analysis, which is subject to asymmetry pressure and buried at shallow depth. The study focuses on the key influencing factors inducing these damages. The numerical analysis is implemented, taking account of the possible influencing factors obtained from field investigation, in which two cases with different numerical models are utilized to discriminate the effects caused by shallow tunnel depth and asymmetric pressure on the tunnel comparatively. The numerical result demonstrates that the topography with shallow depth and asymmetry pressure has much influence on the safety of the multiarch tunnel’s structure, and the cause of damages in the multiarch tunnel structure can be analyzed by field investigation and numerical simulation, which can provide the design basis for appropriate strengthening of the damaged tunnel structure.
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Acknowledgments
The author would like to acknowledge the support from Natural Science Foundation of Jiangsu Higher Education Institutions (16KJB560009), National Natural Science Foundation of China (No. 51408124, 51578292), and Natural Science Foundation of Jiangsu Province (No. BK20140629).
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Published In
Journal of Performance of Constructed Facilities
Volume 31 • Issue 3 • June 2017
Copyright
©2016 American Society of Civil Engineers.
History
Received: Jan 7, 2016
Accepted: Sep 16, 2016
Published online: Nov 8, 2016
Discussion open until: Apr 8, 2017
Published in print: Jun 1, 2017
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