运营条件下有砟轨道涵顶冻害整治技术应用研究  

Study on Application of Treatment Technology for Freezing Damage on the Top of Culvert on Ballast-track Railway under Operation

作　　者：马德东 MA Dedong(hina Railway Shenyang Bureau Group Co.,Ltd.,Shenyang 610031,China)

机构地区：[1]中国铁路沈阳局集团有限公司,沈阳110001

出　　处：《高速铁路技术》2018年第3期71-74,共4页High Speed Railway Technology

基　　金：中国铁路总公司科技研究开发计划(2015G006-H)

摘　　要：文章基于寒区铁路路基冻害对于行车安全运营和维护的影响,按照"冬病夏治"理念,以最大限度的消除路基冻害为目标,尝试采用了双组份反应型树脂类注浆胶对涵顶路基冻胀严重处所进行整治。选取丹大线一处涵顶路基冻害严重处所,入冬前开展了现场注浆整治,收集了2015年冬季和2016年冬季现场静态检查、动态检测及整修资料进行对比分析。研究表明,通过在基床内注入反应型树脂类注浆胶,对消除或极大减弱寒区铁路路基基床的冻胀是有效的。Based on the influence of freezing damage of railway subgrade on operation safety and maintenance in the cold area and according to the concept of ＂ curing winter disease in summer＂,in the paper an attempt has been made to adopt a double component reactive resin grouting glue to treat the places with severe frost heave in the subgrade on the top of culvert for eliminating the freezing damage of subgrade to the maximum limit. The subgrade where the serious freezing damage occurs on the top of a culvert on Dan Da Railway has been treated by on-site grouting before the winter. The static and dynamic inspection data and treatment data in the field in the winter of 2015 and 2016 have been collected and compared. The research result shows that it is effective to eliminate or greatly weaken the frost heave of railway subgrade bedding in the cold area by injecting reactive resin grouting glue into the subgrade bedding.

关 键 词：铁路 路基 冻害 注浆胶 效果评价 

分 类 号：U216.421[交通运输工程—道路与铁道工程]