合武高铁曹家坳特大桥成功转体 跨京九铁路实现毫米级对接|国产日产精品久久久久兰花
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昨天(10月21日),湖北麻城合武高铁曹家坳特大桥顺利完成转体施工,重达数千吨的桥体在京九铁路上空精准完成60度转体,实现毫米级精度对接,标志着国家"八纵八横"高铁网沿江通道建设取得重大突破。
当天晚上6时18分,随着现场总指挥一声令下,曹家坳特大桥开始缓缓转动。这座96米现浇混凝土箱T构,在京九铁路上空历时67分钟,平稳旋转60度,最终精准到达设计桥位,顺利完成转体。
曹家坳特大桥位于麻城市中馆驿镇与南湖街道交界处,地形以低山、丘陵为主,同时上跨我国南北铁路大动脉——京九铁路。面对低丘地貌和跨越繁忙干线的双重挑战,施工团队创新采用"旁位悬浇+同步转体"工艺,并在施工前运用BIM建模技术模拟60°转体轨迹,在确保转体精准到位的同时,保证了对京九铁路运营的零干扰。
据了解,此次转体施工的成功,为整个合武高铁项目的后续建设扫除了关键障碍。合武高铁是沿江高铁通道的重要组成部分。建成后,武汉到合肥的铁路运行时间将从现在的2小时缩短至1小时,加速合肥与武汉互联互通,助力长江经济带高质量发展。
(总台记者 彭照 殷亮)
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