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| Counter-analysis of Displacement of Support Structures in the F4 Fault of Wushaoling Tunnel |
| SUN Qi-qing1, ZHAO Wan-qiang1, GAO Feng2, YU Yu1, KUANG Liang1 |
| 1.China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China; 2. Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China |
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Abstract Research purposes: The F4 Fault is an important district for design and construction of Wushaoling Tunnel, so it is necessary to define the parameters of the initial ground-stress of surrounding rocks and materials properties for the purpose of bringing the tunnel passing this district successfully.
Research results: Based on the site surveyed data of Wushaoling Tunnel, the research is done on defining the initial ground-stress of surrounding rocks in F4 Fault and materials properties with encounter-analysis of displacements and finite element method. Meanwhile, the initial support and bolts and the stress of second lining of tunnel are defined and the stable status of the support structure is evaluated with characteristic curve method.
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Received: 04 January 2008
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2008, Vol. 25 
