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312国道苏州段起自苏、沪交界处的安亭,利用阳澄湖和金鸡湖之间狭窄的交通走廊带,沿沪宁铁路和规划中的京沪高速铁路穿过城区后,在沪宁高速公路与太湖之间的通道内跨越苏州新区,接无锡。全长81.95公里,本次扩建断面标准分22米(6公里)、25.5米(31.3公里)、26.5米(13公里)、36米(19.7公里)、40.5米(12公里)等5种断面。主要工程量为:拆迁房屋42万平方米、路基土石方548万方、软基处理75万延米、桥梁64座、互通6座。工程总投资约26.9亿元。
312 State Road Suzhou section from Anting, Shanghai junction Anting, the use of Yangcheng Lake and Jinji Lake narrow traffic corridor belt along the Shanghai-Nanjing Railway and the planned Beijing-Shanghai high-speed railway through the city after the Shanghai-Nanjing Expressway Crossing the channel between Taihu Lake and Suzhou New District, then Wuxi. The total length of 81.95 kilometers, the expansion section of the standard sub-22 meters (6 kilometers), 25.5 meters (31.3 kilometers), 26.5 meters (13 kilometers), 36 meters (19.7 kilometers), 40.5 meters (12 kilometers) and other five kinds of cross-section. The main works for the demolition of houses: 420,000 square meters, 5.48 million cubic meters of earth and stone subgrade, 750,000 meters of soft foundation processing, 64 bridges, 6 interoperability. The total investment of about 2.69 billion yuan.