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Mathematical Problems in Engineering
Volume 2014, Article ID 727964, 11 pages
http://dx.doi.org/10.1155/2014/727964
Research Article

Upper Bound Solution for the Face Stability of Shield Tunnel below the Water Table

1Department of Geotechnical Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
2Shanghai Urban Construction Design & Research Institute, Shanghai 200125, China

Received 16 May 2014; Revised 15 August 2014; Accepted 22 August 2014; Published 9 October 2014

Academic Editor: Hang Xu

Copyright © 2014 Xilin Lu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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