由江苏省交通工程总公司第六工程公司承建的沪宁高速公路锡北运河大桥,以进度快、质量好而成为江苏段全线的“样板工程”。4月底,省高速公路建设指挥部组织各市高指及施工单位员责人在该桥工地召开了桥梁工程现场会。 位于无锡县的锡北运河大桥,是沪宁高速公路全线技术含量最高、难度最大、开工最迟的大型桥梁。大桥全长478.9米,由分离式双幅组成,桥宽26～37米不等,下部基础均为钻孔灌注桩,共有120根,墩身采用矩形承台、圆形立柱,其中主墩均为φ120cm独桩,上部引桥为大翼缘板圆形空腔矮箱梁,主桥为变高度多边形空腔箱形梁,结构全部采用部分预应力、支架现浇。由于大桥斜跨交通繁忙的锡北运河,常 The project of Xibei Canal Bridge of Shanghai-Nanjing Expressway, constructed by No. 6 Engineering Company of Jiangsu Provincial Traffic Engineering Corporation, has become a “model project” across Jiangsu Province with fast progress and good quality. By the end of April, the Provincial Highway Construction Headquarters organized high-pointing cities and responsible personnel of construction units to hold on-site bridge projects at the site of the bridge. Wuxi North Canal Bridge is located in Wuxi County, Shanghai-Nanjing Expressway is the highest technical content, the most difficult, the construction of a large bridge at the latest. Bridge length of 478.9 meters, composed of separate double width, width of 26 to 37 meters wide, the lower part of the foundation are bored piles, a total of 120, the pier body using rectangular caps, circular columns, of which the main pier are φ120cm single pile, the upper approach bridge is a large flange plate circular cavity low box girder, the main bridge is a variable height polygonal box-shaped beam, the structure of all prestressed, cast-in-place. As the bridge oblique traffic Xibei Canal, often