超大深基坑支撑拆除施工技术研究

Research on construction technology of support demolition of super large deep foundation pit

由于临时支撑系统的混凝土拆除方量巨大,拆除工作较为困难。通过介绍上海某超大深基坑支撑拆除过程中遇到的普遍问题进行针对性的分析,并从中采取多种解决方式比选,最终采用最为合理拆除形式,再通过计算满足安全性要求,反复实践中寻求其便利性,最终以期对类似项目提供针对性的参考。

Due to the huge amount of concrete demolition of the temporary support system,the demolition work is more difficult.This paper analyzes the common problems encountered in the demolition process of a super large deep foundation pit support in Shanghai,compares and selects various solutions,and finally adopts the most reasonable form of demolition,then meets the safety requirements through calculation,and seeks its convenience in repeated practice,so as to provide targeted reference for similar projects.