新世界广场位于上海最繁华地段 南京西路西藏路口,地上12层为商业大厦,地下12层,总建筑面积近8万m~2。地铁1号线从建筑物中部南北向纵贯而过(见图1),工程基坑侧面距地铁仅2.9m,中坑底部离地铁顶仅2.7m,且基地四周各种管线密布,最近相距1m,这些给基坑施工带来了极大的困难。 New World Plaza is located in the most prosperous area of ​​Shanghai, at the intersection of Xizang Road, West Nanjing Road. The 12th floor is a commercial building with 12 underground floors and a total construction area of ​​nearly 80,000 m2. Metro Line 1 runs longitudinally from the center of the building in the north-south direction (see Figure 1). The pit side of the project is only 2.9m away from the subway. The bottom of the pit is only 2.7m away from the top of the subway, and various pipelines around the base are densely spaced. 1m, these have brought great difficulties to the construction of the foundation pit.