| Civil and Mechanical Engineering |
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| Determination of rock resistant coefficient based on Mohr-Coulomb criterion for underwater tunnel |
| Zhong-ren TU, Qiang YANG, Qi-ming SHEN, Xiao-wen WANG |
| State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China; School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China |
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Abstract According to the load-structure method, the wall rock with lining can bear the load caused by the surrounding rock, and the rock resistant coefficient (RRC) is a key parameter for evaluating the capacity of this wall rock. Based on the Mohr-Coulomb yield criterion, this paper develops a formula for calculating the RRC, which has been applied to the real engineering project, such as Xiamen Xiang’an East Passage Underwater Tunnel Project. The fact shows that this formula is helpful for designers to determine the RRC value.
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Received: 20 July 2007
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