Case Study of Rehabilitation of a Damaged Underwater Tunnel in the Construction Phase
Publication: Journal of Performance of Constructed Facilities
Volume 30, Issue 1
Abstract
A case was examined in which an underwater shield tunnel was rehabilitated during the construction phase. An unexpected methane eruption resulted in an inrush of water and silt, which damaged the tunnel. Because of this situation, the sleeve method was adopted to repair the tunnel and to mitigate the environmental influence. The process and technologies for rehabilitation are explained in this work. The finite-element approach was also used to simulate the repair procedure and to analyze the risks in the construction phases to ensure the safety of the tunnel. This presentation of rehabilitation in key construction phases can serve as instructions for similar engineering accidents that occur in the future.
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Acknowledgments
The authors would like to acknowledge the support of the National Natural Science Foundation of China (Grant No. 51109184) and the Project Research on key technology of large-span municipal tunnel construction and operation under complicated environment.
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© 2014 American Society of Civil Engineers.
History
Received: Jan 7, 2014
Accepted: Jun 26, 2014
Published online: Aug 14, 2014
Discussion open until: Jan 14, 2015
Published in print: Feb 1, 2016
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