一、基础及上部结构选型分析:本项目地上共有6栋建筑,其中BZ#—B6#楼为饕界部分,地下二层,地上四层。其中地下室战时为核6级、常6级,甲类、二等人员掩蔽所,平时为地下车库,地上为商业街。由于地下室较深,地下水位较高,建筑物自重不足以抵抗水浮力,经比较采用混凝土螺杆桩抗拔,桩怪为500,桩芯直径380,桩长8米, I. Basic and superstructure selection analysis: There are totally 6 buildings on the ground of the project, of which BZ # -B6 # is a gluttonous part, two floors underground and four floors above ground. Basement wartime nuclear 6, often 6, A, second-class shelter, usually underground garage, the ground for the commercial street. Due to the deep basement and high groundwater level, the building is not enough weight to resist the buoyancy of the water. After comparing the concrete screw piles, the pile blasts 500, the pile core diameter 380, the pile length 8 meters,