既有铁路“预应力锚索+钢筋混凝土纵梁”综合治理上拱病害施工技术  

Construction Technology for Comprehensive Treatment of Arch Defects in Existing Railways Using Prestressed Anchor Cables and Reinforced Concrete Longitudinal Beams

作　　者：郭昭 GUO Zhao(China Railway Sixth Bureau Group Taiyuan Railway Construction Co.,Ltd.,Taiyuan 030000,China)

机构地区：[1]中铁六局集团太原铁路建设有限公司,太原030000

出　　处：《价值工程》2025年第10期148-150,共3页Value Engineering

摘　　要：为便于铁路运输行业的提升,隧道工程一直是工程施工的重要组成部分,但随着时间的推移,铁路隧道在长期的运营使用中,由于复杂自然条件和施工质量等综合因素,造成了已建铁路隧道开始出现一些病害现象,尤其是货运线路载重较大隧道,因复杂的地质条件引起隧道围岩局部收缩变化,导致整体道床上拱,具有突发、结果严重、施工困难等特性。为了更好地解决既有铁路隧道整体道床上拱问题,结合现场实例,采用预应力锚索+钢筋混凝土纵梁的综合处理方式,为类似病害整治工程提供参考。In order to facilitate the improvement of the railway transportation industry,tunnel engineering has always been an important part of engineering construction.However,over time,due to complex natural conditions and construction quality,railway tunnels have begun to show some disease phenomena in existing railway tunnels,especially in tunnels with heavy freight lines.The complex geological conditions cause local shrinkage and changes in the surrounding rock of the tunnel,resulting in the overall arch of the track bed,which has the characteristics of sudden,serious results,and construction difficulties.In order to better solve the problem of arch on the overall track bed of existing railway tunnels,combined with on-site examples,a comprehensive treatment method of prestressed anchor cables and reinforced concrete longitudinal beams is adopted to provide reference for similar disease control projects.

关 键 词：隧道 病害整治 整体道床 预应力锚索 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]