常规的多层地下室施工是一次开挖至基底,再分层由下向上浇筑底板、隔墙和各层楼板。而逆作法施工是由上向下,逐层挖掘,逐层浇筑直至基底。逆作法施工多层地下室可避免深基坑大开挖,缩短工期,在我国此类工程实例不多,本文主要介绍上海电讯大楼的三层地下室工程,地下连续墙支护逆作业施工方法。上海电讯大楼的位置紧靠交通干道。该 The conventional multi-story basement construction is once excavation to the base, and then the floor, the partition walls and the floors of each floor are layered from the bottom up. The construction of the top-down method is to dig from top to bottom, layer by layer, and layer by layer until foundation. Reverse construction of multi-story basement can avoid deep excavation of deep foundation pit and shorten construction period. There are not many examples of such projects in our country. This article mainly introduces the three-story basement project of Shanghai Telecom Building, and the construction method of underground continuous wall support reverse construction. The Shanghai Telecom Building is located close to the main road. The