土工基础

›› 2017, Vol. 31 ›› Issue (2): 133-138.

• 工程实录 • 上一篇    下一篇

基坑支护结构与主体结构相结合的复合支护技术的应用

胡焕校，杨 涛，蒋 菡   

  1. （中南大学地球科学与信息物理学院，长沙 430083）
  • 收稿日期:2016-03-30 修回日期:2016-04-13 出版日期:2017-04-20 发布日期:2017-05-04
  • 作者简介:胡焕校（1968-），男，教授，博士生导师，研究方向为岩土工程。

Application of Combining the Excavation Support with the Main Building Structure

HU Huanxiao, YANG Tao, JIANG Han   

  1. (School of Geosciences and Info-Physics, Central South University, Changsha 410083)
  • Received:2016-03-30 Revised:2016-04-13 Online:2017-04-20 Published:2017-05-04

摘要： 针对长沙市佳兆业广场深基坑支护工程面临主体结构紧邻地铁区间，施工空间狭小、地铁车站变形控制严格等问题，充分考虑基坑工程安全性以及经济性，采用支护结构与主体结构相结合的复合支护设计方法，有效的解决了主体结构的空间狭小及施工安全性问题。分析基坑监测数据表明基坑安全可靠。总结分析了传统中心岛方法、中心顺作周边环板逆作方法等与主体结构相结合的复合支护方法的适用性及特点，并指出复合支护方法具有较强的经济社会效益。

关键词: 基坑复合支护, 主体结构, 内撑

Abstract: This paper presents a case history of deep excavation of Kaisa Square, of which the main structure is very close a subway station with restrictive deformation requirements. The excavation supporting system design considered the safety and the cost effectiveness and combined the supporting structure with the construction of main structure. This approach resolved the limited construction space due to the constraint of the adjacent subway station and the consequent construction safety concerns. The construction monitoring data indicated that the application of this method is successful. The feasibility as well as the characteristics of using the combination approach with the conventional deep excavation sequences such as central part by bottomup method and peripheral part by topbottom method are also discussed in this paper.

Key words: Composite Method of Excavation Support, Main Building Structure, Inner Support Bracing Structure