某工程建筑面积约12万m2,系框架剪力墙结构,地下二层。地下室筏板、外墙及地下室顶板后浇带均设计采用300mm×4mm的钢板止水带,总长为818.8m。为了保证后浇带处钢板止水带施工质量,对钢板固定方式进行了改进(图1)。此方法既保证了止水钢板的位置,又能保证筏 A construction area of ​​about 120,000 m2, the Department of shear wall structure, two basements. Basement raft, exterior walls and basement roof after pouring strip are designed with 300mm × 4mm steel water stop, with a total length of 818.8m. In order to ensure the construction quality of the steel plate water stop after pouring, the way of steel plate fixing is improved (Figure 1). This method not only ensures the position of the water stop plate, but also guarantees the raft