复杂环境下深大基坑围护变形控制技术

Technology of deformation control for large and deep foundation pit support in complex environment

某深大基坑在影响范围内存在若干变形敏感的古建筑,结合当地的地质条件及周边环境,提出了地下连续墙的施工方案,研究了地连墙施工、锚索施工、降水及土方开挖的施工工艺,并结合监测资料对方案进行了优化设计,在保证工程投资的前提下,使基坑变形一直在可控的范围之内。

There are some sensitive deformation of the ancient architecture in the influence scope of large and deep foundation pit. Combined with local geological conditions and the surrounding environment,put forward the construction scheme of diaphragm wall,researches the construction crafts of concrete diaphragm walls,anchor cable construction,dewatering and civil excavation,and combined with monitoring data to optimize scheme. To guarantee the project investment as the premise,the deformation of foundation pit has been controlled in a range.