Construction scheme design for deep foundation pit constructed by "top-down" method based on 3D FEM

被引：0

作者：

Rui Rui ^{[1
]}

Xia Yuan-you ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Hubei, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2008年 / 29卷 / 05期

关键词：

deep foundation pit; top-down" method; 3D FEM; scheme design; deformation control;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Construction scheme design of diaphragm wall deep foundation pit constructed by "top-down" method based on 3D FEM is researched; and design method according to deformation control is put forward. The oversized deep foundation pit of Hutchison Whampoa Ltd. project in China's Tianjin is calculated and designed as an example. Firstly, structure design of the slabs under vertical load is done. Secondly, three design schemes are put forward based on the structure design and 3-D FEM models of which are established; and every state of each scheme is calculated respectively. The stress and deformation of the diaphragm and slab under different states are obtained. The key state of construction and the weak parts of the whole structure are found out. At last, with consideration of the practical situation, advantages and deficiencies of the schemes are analyzed. Optimal scheme is selected by synthetical consideration.

引用

页码：1391 / 1395

页数：5