一、工程概况苏通长江公路大桥位于长江河口地区,连接苏州、南通两市,是国家沿海高速公路的枢纽工程。工程全长32.4km,采用双向六车道高速公路标准,由南、北接线、跨江大桥三部分组成。其中,跨江大桥全长8146m,主桥采用主跨1088m的斜拉桥,是世界首座跨径超千米斜拉桥。主通航孔宽891m,高62m,可满足5万吨集装箱货轮和4.8万吨级 First, the project overview Sutong Yangtze River Highway Bridge is located in the Yangtze River estuary region, connecting Suzhou, Nantong two cities, is the hub of the national highway along the coast. The project has a total length of 32.4km and adopts the bidirectional six-lane expressway standard. It is composed of three parts: the south and the north, and the cross-river bridge. Among them, the cross-river bridge length of 8146m, the main bridge with a main span of 1088m cable-stayed bridge, is the world’s first span over 1000 meters cable-stayed bridge. The main navigation hole width 891m, high 62m, to meet 50,000 tons of container ships and 48,000 tons