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该工程建于长江北支南岸黄瓜沙北堤上,水闸规划规模为闸室净宽14m,闸底板面高程-0.50m,最大过流量147.35m~3/s。本工程还包括总长4098m的新河港北延伸段河道整治工程,其中,崇明境内长2234m,启东境内1864m,为节约用地及满足江苏用地要求,拟实施河口宽52m、坡比1:3、河底高程-1.0m的方案,结构形式为:从河底斜坡至高程2.4m,以上为直立式挡墙,防汛通道紧靠挡墙压顶;启东范围内防汛通道9m宽度,崇明范围内防汛通道3.5m+1.0m;跨新河港的桥梁8座,支河桥梁1
The project was built on the northern bank of the North Branch of the Yangtze River on the northwestern cucumber sand embankment, the gate size of the sluice gate layout of the net width of 14m, sluice floor elevation -0.50m, the maximum overflow 147.35m ~ 3 / s. The project also includes the river course renovation project of the Xinhe Port North Extension with a total length of 2234m and an open area of 1864m in Qidong. In order to save land and satisfy the requirements of land use in Jiangsu, it is planned to implement a river mouth of 52m in width, 1: 3 slope ratio, Elevation -1.0m program, the structure of the form: from the river slope to an elevation of 2.4m, the above is a vertical retaining wall, flood control channel against the wall pressure top; Qidong within the flood control channel 9m width, flood control within the Chongming channel 3.5m + 1.0m; Bridge across New River Port 8, branch River Bridge 1