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国道主干线——广州绕城公路东段,是国家批准的重点工程建设项目,线路全长18.694km,按高速公路标准建设,路基宽34.5m,总投资41.15亿元。包括国内第一座双向八车道长隧道(单洞长2016m、净宽18m)及5座互通立交、大跨径跨越高速公路和铁路编组站连续刚构桥及软土路基处理等工程;控制性工程——广州珠江黄埔大桥,全长7016.5m,是广东省建设的最大规模桥梁工程,省内最大跨径(1108m)的钢箱梁(梁宽41.69m)悬索桥,国内最大跨径(383m)的独塔双索面钢箱梁(梁宽41m)斜拉桥,世界上采用移动模架法施工的最大跨径(62.5m)连续刚构。
The main road of national highway - the eastern section of Guangzhou Ring Road, is a key construction project approved by the state. The total length of the line is 18.694km. It is constructed according to the expressway standard and the roadbed is 34.5m wide with a total investment of 4.15 billion yuan. Including the first two-way eight-lane long tunnel (single-hole length of 2016m, net width of 18m) and five interoperability interchanges, long span of expressway and railway marshalling yard continuous rigid frame bridge and soft soil embankment treatment projects; control Project - Guangzhou Zhujiang Huangpu Bridge, with a total length of 7016.5m, is the largest bridge project constructed in Guangdong Province. The largest span (1108m) suspension bridge of steel box girder (beam width 41.69m) in the province, the largest span (383m) (62.5m) continuous rigid-frame construction using the movable formwork method in the world.