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3 工程算例 以上海地铁1号线新闸路地铁车站为例进行计算。 新闸路地铁车站为双层三跨箱形结构,地下连续墙作为箱形结构外墙,直接承受上部结构的垂直荷载。地下连续墙厚0.6m,内衬为厚0.45m的现浇钢筋混凝土结构。结构每根柱下设有4φ800钻孔灌注桩,桩长20.5m,打入褐黄色粉砂层,桩间距为3.3m。结构顶板,中楼板厚度均为0.4m,底板厚1.15m,并设有纵梁联系各横向框架。
3 Engineering Calculations Take the Xinzha Road subway station of Shanghai Metro Line 1 as an example. The Xinzha Road subway station is a double-span three-span box-shaped structure. The underground continuous wall serves as the box-shaped structure exterior wall and directly bears the vertical load of the superstructure. The underground continuous wall is 0.6m thick and the inner lining is a cast-in-place reinforced concrete structure with a thickness of 0.45m. There are 4φ800 cast-in-place piles under each column of the structure. The length of the piles is 20.5m, and the brown-yellow silt layer is struck. The pile spacing is 3.3m. The top plate of the structure has a thickness of 0.4m and a floor thickness of 1.15m, and is provided with longitudinal beams that connect the transverse frames.