高速铁路无砟轨道整体抬升技术探析

摘要

In light of uneven ballastless track subsidence problems of comprehensive Da-Xi high-speed railway testing section,the paper formu-lates specific subsidence treatment scheme. Starting from aspects of lifting principles,construction equipment,construction methods and techno-logical features,it systematically illustrates polymer grouting construction technologies. Results show that:the ballastless track subsidence can be accurately lifted by applying the integral lifting technology,which recovers road smooth at subsidence section.%针对大西高铁综合试验段无砟轨道的不均匀沉降问题，制定了具体的沉降整治方案，并从抬升原理、施工机具配备、施工方法及其技术特点等方面，对高聚物注浆施工技术进行了系统介绍，结果表明该技术能够对已下沉的无砟轨道实现精确抬升，恢复沉降地段线路的平顺性。