中国最长超深超大基坑地下高铁站海门北站核心区基坑底板“封底”|国产精品一区在线观看你懂的
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中新网南通10月30日电 (记者 朱晓颖)30日,新建上海至南京至合肥高速铁路(简称“沪宁合高铁”)关键控制性工程——海门北站核心区基坑最后一块底板完成浇筑,标志着目前中国最长超深超大基坑地下高铁站核心区基坑底板实现“封底”,项目建设取得阶段性进展。

海门北站采用两台六线站场布局,地下一层为换乘通道,地下二层为高铁站台层,地下三层预留地方城际轨道层。车站北侧衔接规划中的南通新机场,建成后将成为集高铁、航空、城轨、地铁、公交、出租车等多种交通方式于一体的大型综合交通枢纽,这在全国都是比较少见的。
中铁一局沪渝蓉高铁项目一分部党支部副书记、总工程师张磊介绍,车站连续开挖长度达1.8公里,相当于8.5列CR400BF-Z型动车组首尾相连;最大开挖深度29.4米,相当于10层楼高度;总开挖土方量约148万立方米。由于车站地处富水粉土、粉砂、淤泥质粉质黏土地层,地质上松下软,地下水丰富、基坑降水深度大、雨季汇水面积大,施工难度如同“豆腐块里修高铁”。项目团队依托数字化智能管控手段,创新应用智能可视化降水、基坑支撑伺服补偿与基坑自动监测三大系统等,确保工程安全质量全程可控。

目前,海门北站总体工程已完成超过80%,后续将全面展开墙板柱施工,预计2026年3月底完成主体结构施工。
作为沪渝蓉高铁的东段线路,沪宁合高铁是中国“八纵八横”高速铁路网沿江高铁通道的重要组成部分。该项目建成后,将在上海大都市圈、南京都市圈、合肥都市圈之间建立起一条快速新通道,对优化沿长江地区铁路网布局、推进长三角一体化高质量发展等具有重大意义。(完)
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