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请稍候... 首页 新闻资讯 正文 中新网 佛山11月30日电 (郭军 邓联旭 罗瑜)11月30日,由中铁二十五局承建的广东佛山市大沥镇河东中心路下穿高铁市政工程取得重要进展,工程下穿高铁区间路基管幕结构施工全部完成,这是全国首例下穿高铁区间路基管幕结构施工。 该工程位于佛山市南海区大沥镇,需下穿运营中的贵广高铁、南广高铁和广湛高铁联络线,施工难度大、安全风险高、环保要求严。为规避掘进施工引起的高铁路基变形与沉降风险,中铁二十五局项目团队应用国内先进的920毫米直径可回退式管幕机,采用管幕法施工技术,在掘进同时同步安装钢管,形成密集的管幕结构,对高铁路基进行加固和支撑,保证施工安全和效率,大大降低路基开挖对运营中高铁线路的不利影响。 全国首例下穿高铁区间路基管幕结构工程顺利完工。中铁二十五局 供图 “管幕机可在满足正常掘进的前提下,实现在洞内高效无损可回退功能,人员不需要进入洞内,便可以通过自动控制系统及回退装置将刀盘和主机拖至洞外,让掘进变得‘收放自如’。”中铁二十五局项目技术负责人贾晓辉说。 此项全国首例下穿高铁区间路基管幕工程的顺利完成,不仅展示了我国在复杂工况下隧道施工的技术实力,也为今后在运营高铁线路下方进行类似施工提供了可靠的技术借鉴和工程示范。 据悉,佛山市大沥镇河东中心路下穿高铁市政工程完工后,将有效打通大沥镇河东中心路跨铁通道,加速推进南海城市中轴北延、构建广佛湾片区15分钟生活工作圈,还将助力建成“九纵五横一环”路网结构,对优化区域路网交通格局具有重要意义。(完) 文章版权声明:除非注明,否则均为 全国首例下穿高铁区间路基管幕结构工程顺利完工 原创文章,转载或复制请以超链接形式并注明出处。
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