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中新网重庆9月1日电 (张旭)9月1日，由中国铁建大桥局承建的新建重庆至万州高速铁路(以下简称“新渝万高铁”)蔡家沟双线特大桥主跨成功合龙，为全线按期通车奠定了坚实基础。
新渝万高铁是中国“八纵八横”高铁网包(银)海、京昆通道的组成部分。线路起自重庆东站，途经重庆市南岸区、巴南区、涪陵区、丰都县、忠县至万州区，接入万州北站，正线全长251公里，设计时速350公里。
蔡家沟双线特大桥位于重庆市涪陵区，全长约2113米，是全线重难点工程。桥梁地处丘陵河谷地段，地势陡峭，存在危岩落石、滑坡体及河床斜岩等不良地质。该桥具有高墩大跨、安全风险高、技术难度大等诸多施工挑战。
建设过程中，项目团队攻克了高墩施工精度控制、大体积混凝土温度控制等诸多难题，推出多项新工艺新工法，有序推进了施工。
新渝万高铁建成通车后，将有力促进渝东北三峡库区城镇群和重庆主城都市区的便捷联系，极大便利沿线民众出行，推动沿线经济社会发展。(完)
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