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| Destruction Process Numerical Simulation of Underground Pit Supporting System under Earthquake Action |
| WANG Ying-Yi-1, GU Li-Jun-2, HUANG Xing-Chun-1 |
| (1. Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China;2. Shanghai No.2 Municipal Engineering Co., Ltd, Shanghai 200065, China) |
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Abstract Based on the character of typical foundation pit support structure and method in gravel stratum, by establishing reasonable 3-D seismic response analysis numerical simulation, adopting LS-DYNA software, this paper studied the stability, disability mutation process and time-dependence characteristic of foundation pit and continuous concrete wall with steel support under intense earthquake action. The results show that failure happens in very short time; propagation direction of the seismic wave has a great influence on the structure stability, the least favorable angle is 30°-40°.
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Received: 12 November 2010
Published: 30 May 2011
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