复杂施工栈桥在深大软土基坑施工中的应用

Application of Complex Construction Trestle in Deep and Large Soft Soil Foundation Pits Construction

以浙江某工程为例,对软土地区场地狭小、工期紧,周边环境保护要求高的基坑施工方案进行了研究。通过设置水平和斜向结合的复杂栈桥形式,较好地解决了工程难点。同时,针对深大软土基坑,通过采用折线布设栈桥的创新思路,解决了栈桥下坑的难点。工程中总结的技术,可供类似工程借鉴。

Taking a project in Zhejiang as an example,the construction plan of foundation pit in soft soil area with narrow site,tight schedule and high requirement of surrounding environment protection is studied.By setting a complex trestle form combining horizontal and oblique direction,the difficult points of the project are better solved.Meanwhile,for deep and large soft soil pits,the difficult point of trestle under the pit was solved by adopting the innovative idea of laying trestle on the folding lines.The technology summarized in the project can be used as a reference for similar projects.