国家大剧院超深基坑支护施工技术

Construction Technology of Super Deep Foundation Pit Support of the National Great Theater Project

国家大剧院超深基坑工程经过多方案的比选、论证,确定了桩、锚、墙多级支护,抽、渗、隔、减压多种方式相结合的地下水控制方案,在施工前,进行施工方法的实地试验、分析与总结,确定了高承压水卵石地层中的地下连续墙施工方案、高承压水卵石地层中大吨位锚杆的施工方法以及高承压水卵石地层中的成井、封井施工技术。

By comparing and discussing,it was assured that multi-layer support methods of pile,anchor arm and underground diaphragm wall and underground water control method of pumping,seeping,isolation and reducing pressure used in super deep foundation pit support engineering of the National Great Theater Project.Before the construction,engineers carried the on-site test,analyses and sum-up to assured the construction methods of underground diaphragm wall,anchor arm and drilling well and seal well off.