THE INFLUENCE OF WATER CONTENT ON UPLIFT ULTIMATE CAPACITY OF ENLARGED BASE PILES IN UNSATURATED SILT
KONG Linggang1，2，ZHANG Geqiang1，2，CHEN Renpeng1，2，CHEN Yunmin1，2，XING Yuelong3，YING Jianguo3
(1. Institute of Geotechnical Engineering，Zhejiang University，Hangzhou，Zhejiang 310058，China；2. MOE key Laboratory of Soft Soils and Geoenvironmental Engineering，Zhejiang University，Hangzhou，Zhejiang 310058，China；
3. Zhejiang Electric Power Design Institute，Hangzhou，Zhejiang 310000，China)
Abstract：To evaluate the uplift behavior of enlarged base piles，a simplified numerical model for the piles in silt has been developed in this study and its calculated results are compared to the results of large-scale model tests. Agreement between the calculated results and the test results is excellent. A series of numerical analysis were then performed to investigate the effects of raining and ground water level on the uplift capacities of enlarged base piles with different depths. It is found that raining has a more significant influence on uplift capacities of the enlarged base piles with shallow embedment，while the variation of ground water level has a significant influence on the enlarged base piles with different depths.
孔令刚1，2，张革强1，2，陈仁朋1，2，陈云敏1，2，邢月龙3，应建国3. 土体含水量对扩底桩上拔承载力影响研究[J]. 岩石力学与工程学报, 2011, 30(S2): 3755-3762.
KONG Linggang1，2，ZHANG Geqiang1，2，CHEN Renpeng1，2，CHEN Yunmin1，2，XING Yuelong3，YING Jianguo3. THE INFLUENCE OF WATER CONTENT ON UPLIFT ULTIMATE CAPACITY OF ENLARGED BASE PILES IN UNSATURATED SILT. , 2011, 30(S2): 3755-3762.
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2011, Vol. 30 
