土工基础

›› 2016, Vol. 30 ›› Issue (2): 144-147.

• 工程实录 • 上一篇    下一篇

某基坑围护方案设计及其环境影响评价

詹 可，韩爱果，张小林   

  1. （成都理工大学 地质灾害防治与地质环境保护国家重点实验室，成都 610059)
  • 收稿日期:2015-03-10 出版日期:2016-04-20 发布日期:2016-04-27
  • 作者简介:詹 可（1990-），男，硕士研究生在读，研究方向为岩土体稳定性与工程环境效应。

Support Design and Environmental Impact Assessment of a Deep Excavation

ZHAN Ke, HAN Aiguo， ZHANG Xiaolin   

  1. （State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu, 610059, China）
  • Received:2015-03-10 Online:2016-04-20 Published:2016-04-27

摘要： 以上海某建筑基坑为例，根据基坑特定的地质环境条件，设计选用重力式挡墙及SMW法对基坑不同区段进行支护，并采用基坑支护结构专用软件FRWS对所设计的支护结构的整体稳定性、抗倾覆安全性及坑内侧土体抗力安全性等进行了综合评估。根据基坑周边对工程不利的埋藏物的分布特点，采用二维有限元分析软件模拟基坑围护结构和开挖过程，评价所设计的基坑支护方式及开挖过程对基坑周边不利环境条件的影响。工程实践表明，不同区段选用的重力式挡墙及SMW工法支护结构是安全有效的。

关键词: 基坑支护, 重力式围护墙, SMW工法, 环境影响

Abstract: This paper presents a case history of a deep excavation in Shanghai. Based on the subsurface conditions of the proposed deep excavations, both gravity wall type and soil mixed wall (SMW) were used as the supporting structures. The excavation process, the performance of the supporting structures and the impact on the adjacent structures were numerically simulated by the finite element method. The results indicate that gravity wall and SMW are suitable as the supporting structures of the deep excavation.

Key words: Deep Excavation Support, Gravity Retaining Wall, Soil Mixed Wall, Environmental Impact