中防万宝城逆作法设计与施工

Design and construction of Top-Down method in Zhong Fang Wanbao City

随着城市建筑密度的增加,交通组织、环境保护要求越加严格。而伴随着城市地下空间建设规模的加大,地下工程施工难度更是大大增加。作为地下工程主要施工工艺之一,逆作法在超大、超深基坑中具有明显优势。中防万宝城及福州地铁2号线宁化站为同一结构体,同步设计施工,总建筑面积约20万平方米,采用全盖挖逆作法建设。本文介绍该工程实例,可为同类大型地下综合体设计施工提供借鉴。

With the increase of city building density,the requirement of traffic organization and environment protection are more stringent.However,with the increase of the construction scale of the urban underground space,the difficulty of the underground engineering construction is greatly increased. As one of the main construction technology of underground engineering,the top- down construction method has obvious advantages in the super large and super deep foundation pit. Zhong Fang Wanbao City and Ninghua site in subway line 2 are synchronous designed and constructed. The total construction area is 200 thousand square meters,and constructed by top- down method.This paper introduces the engineering example,which can provide reference for the design and construction of similar large- scale underground complex.