(上海建筑设计研究院有限公司， 上海 200041)

[摘要]结合上海世博B片区央企总部基地项目，对该项目中3组抗拔桩分别进行基坑开挖前、后基桩静载荷抗拔试验，同时利用有限元分析软件ANSYS以及MIDAS GTS对其进行数值模拟，以深入探讨深基坑开挖条件下抗拔桩承载力变化特性。

[关键词]深基坑开挖； 抗拔桩； 土体回弹; 抗拔承载力; 有限元方法

中图分类号： TU473    文献标识码： A    文章编号： 1002-848X(2015)S2-0240-04

Research on ultimate uplift capacity of uplift piles under deep pit excavation

Zhou Chun, Liu Yiping, Pan Dongying, Liu Yangming, Wang Ruidong

(Shanghai Institute of Architectural Design and Research Co., Ltd., Shanghai 200041， China)

Abstract: Based on project of state-owned enterprises base in Shanghai Expo B zone, three sets of uplift pile were tested before and after pit excavation, and the site tests were simulated by finite element software ANSYS and MIDAS GTS. Variation characteristics of uplift capacity under deep pit excavation were research furtherly.

Keywords: deep pit excavation; uplift pile; soil rebound; ultimate uplift capacity; finite element method

作者简介：周春，学士，Email:zhouchun@siadr.com.cn。深基坑开挖下桩抗拔承载力研究