紧邻保留改造建筑的多种围护形式基坑施工关键技术

Key Technologies for Construction of Foundation Pit with Multiple Support Forms Adjacent to Reserved and Reconstructed Buildings

以上海市奉贤区青少年活动中心项目为例,通过对原有设计围护结构体系进行优化,因地制宜地采取了多种围护形式支护的方案。该方案在保证基坑安全性的同时,加快了施工进度,也极大地降低了施工成本。总结的关键技术可为多种围护形式在同一深基坑中的运用提供借鉴。

Taking the Youth Activity Center Project in Fengxian District of Shanghai as an example,through the optimization of the original support structure system design,a multiple forms of support scheme is adopted according to local conditions.The scheme not only ensures the safety of foundation pit,but also accelerates the construction progress and greatly reduces the construction cost.The key technologies summarized can provide reference for the application of multiple support forms in the same deep foundation pit.