2012, Volume 14, Issue 1
Strategic Study of CAE >> 2012, Volume 14, Issue 1
The application of DX piles in the LNG storage tanks
1. Beijing Zhongkuo Foundation Technology Co., Ltd, Beijing 100097, China;
2. Petro China Company Limited, Jiangsu LNG Project, Nantong, Jiangsu 226001, China;
3. China Huanqiu Contracting & Engineering Corporation, Beijing 100029, China;Beijing Zhongkuo Foundatio
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Abstract
In this paper, considering the special field with hydraulic fill sand in upper soil layer and fine sand in the lower soil, we adopt straight piles and DX piles in foundation of LNG storage tanks; a series of self-balanced load tests for piles are conducted. The purpose is to determine the ultimate bearing capacities and settlement of piles, analyze its load transfer mechanism, and study the distribution and development of the skin friction resistances and tip resistances. Comparing DX piles with straight piles, we find that DX piles are superior in ultimate bearing capacities and settlement; at the same time, the length of DX piles can be reduced apparently.
Keywords
DX piles ; skin friction resistances ; tip resistances ; ultimate bearing capacities ; settlement
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References
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[ 2 ] 中华人民共和国建设部，建筑桩基技术规范JGJ94-2008[S].北京：中国建筑工业出版社，2008.
[ 3 ] 中华人民共和回建设部.建筑桩基检测技术规范JG]106-2003[S].北京：中国建筑工业出版社，2003.
[ 4 ] 江苏省技术监督局，江苏省建设委员会，桩承载力自平衡测试技术规程DB32/T291-1999[S]. 1999.
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