FAILURE PATTERN STUDY AND STABILITY ANALYSIS OF PILE FOUNDATION IN KARST AREA

Sun Ying-xia; Zhang Zhi-hao; Wang Jin-an

doi:10.13204/j.gyjz201209021

Volume 42 Issue 9

Dec. 2014

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Sun Ying-xia, Zhang Zhi-hao, Wang Jin-an. FAILURE PATTERN STUDY AND STABILITY ANALYSIS OF PILE FOUNDATION IN KARST AREA[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(9): 96-102. doi: 10.13204/j.gyjz201209021

Citation:

Sun Ying-xia, Zhang Zhi-hao, Wang Jin-an. FAILURE PATTERN STUDY AND STABILITY ANALYSIS OF PILE FOUNDATION IN KARST AREA[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(9): 96-102. doi: 10.13204/j.gyjz201209021

Sun Ying-xia, Zhang Zhi-hao, Wang Jin-an. FAILURE PATTERN STUDY AND STABILITY ANALYSIS OF PILE FOUNDATION IN KARST AREA[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(9): 96-102. doi: 10.13204/j.gyjz201209021

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FAILURE PATTERN STUDY AND STABILITY ANALYSIS OF PILE FOUNDATION IN KARST AREA

doi: 10.13204/j.gyjz201209021

1.
1. Central Research Institute of Building and Construction,MCC,Beijing 100088,China;
2.
2. China Jingye Engineering Corporation Limited,Beijing 100088,China;
3.
3. Beijing University of Science and Technology,Beijing 100083,China

Received Date: 2011-10-21
Publish Date: 2012-09-20

Abstract

Abstract

Based on the indoor model test, the stability analysis of the rock mass in karst area affected by pile was carried out by numerical simulation with the finite difference method.From the calculation results, it was obtained the changing procedure of the stress and the internal strain of the rock mass around the karst cave under pile load and the failure surface position, and put forward the effective stability criterion of the pile in karst area.It was also summarized the failure mode and failure mechanism of piles foundation in karst area, including pile foundation damage and the surrounding rock mass failure of the cave.The failure mode was mainly affected by the size of the karst cave, the load location, the roof thickness, and etc, in which the roof thickness was the main influence factors
- karst areas,
- pile foundation,
- numerical simulation,
- stability analysis,
- failure patterns