墙桩结合支护体系在深基坑二次加深情况下的分析与应用

Analysis of the Application of Wall and Pile Supporting System in the Second Deepening of Deep Foundation Pit

本文以具体项目为案例，论述了该项目深基坑施工过程中原地下2层变更为3层的情况。在充分利用原有2层支护体系基础上，对基坑采用墙桩结合支护体系进行了分析，对支护施工中采取的主要措施和工艺进行了介绍，具有一定的借鉴价值。

This paper with specific project as a case, discussed the convert of two layers into two layers underground in the construction process of deep foundation pit. In the ful use of the original supporting system of two layers, the author an-alyzed the wal and pit supporting system applied and introdu-ced the main measures and technology taken in construction, which has a certain reference value.