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Mathematical Problems in Engineering
Volume 2016 (2016), Article ID 4832097, 8 pages
http://dx.doi.org/10.1155/2016/4832097
Research Article

Upper Bound Solution of Safety Factor for Shallow Tunnels Face Using a Nonlinear Failure Criterion and Shear Strength Reduction Technique

School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha, Hunan 410114, China

Received 5 February 2016; Accepted 26 April 2016

Academic Editor: Yakov Strelniker

Copyright © 2016 Fu Huang 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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