首榀箱梁成功架设 甬舟铁路建设提速|少妇边做边说粗话A片视频
中新网舟山10月28日电(蓝伊旎 江龙余)10月28日,在浙江舟山马岙特大桥建设现场,一榀长32米、重714吨的简支箱梁稳稳落在桥墩之间,标志着甬舟铁路全线首榀箱梁成功架设,这项世界级跨海铁路工程由此转入线上线下同步施工新阶段。
据悉,甬舟铁路由沪杭客专公司建设管理、中铁上投牵头投资、中铁四院总体设计,该线路西起宁波东站,经宁波市鄞州区、北仑区与舟山市金塘岛、册子岛、富翅岛至舟山本岛舟山站,全长76.4公里,设计时速250公里。

面对箱梁重量大、运输架设难度高等挑战,中铁四局项目团队投入架桥机1台、运梁车1台,以确保架梁作业精度和安全。该架桥机最大起吊重量为900吨,创新采用独立吊梁结构,可安全、快速前行过桥墩孔跨。项目团队还围绕架梁核心作业参数,量身打造了“装梁—运梁—架梁”全链条一体化方案。
为了按期高质量完成梁体的装、运、架等施工任务,项目团队紧盯拼装及验收节点,科学施组、精准施策,稳步推进工程建设。项目团队使用运梁车将箱梁运至架桥机下方,通过架桥机起吊至预定高度,实现“梁场装梁、运梁车运输、平稳落梁”的高精度作业,落梁误差控制在毫米级,同时还配备专业运梁作业人员全力保障通行安全。
作为国家《中长期铁路网规划(2016—2030年)》的重大项目之一,甬舟铁路建成通车后,将结束舟山群岛不通铁路的历史,长三角地区唯一尚未通高铁的地级市——舟山市将由此接入全国铁路网,对助力宁波舟山同城化发展、促进长三角一体化发展等具有重要意义。(完)
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