结构工程师2011，Vol.27Issue(5)：140-145,6.
基坑开挖与降水对坑底工程桩影响的数值分析
Numerical Analysis of Effect of Dewatering and Excavation on Piles in a Pit
摘要
Abstract
Foundation pit excavation is normally followed by the construction of super-long compact pile groups. When there are large numbers of engineering piles on the bottom of the foundation pit, the excavation of foundation pit obviously impacts the piles. In order to study the effect of large-scale excavation and unloading, and force-deformation characteristics of the pile groups, the numerical analysis software (ABAQUS) was used to simulate a foundation pit project in Shanghai. The influence of the dewatering and excavation of foundation pits on pile groups was calculated and analyzed. The results showed that vertical rebound on the top of the piles and displacement between pile and soil considering dewatering or not were different. The result was too large without consideration of the dewatering, but it compied with engineering practice with consideration of dewatering.关键词
基坑开挖/降水/坑底桩/变形Key words
foundation pit excavation, dewatering, pile group, deformation引用本文复制引用
陈伟..基坑开挖与降水对坑底工程桩影响的数值分析[J].结构工程师,2011,27(5):140-145,6.基金项目
上海市科技攻关计划重点项目资助(09231200900) （09231200900）
