加筋土反压回填技术在膨胀土地层高路堑边坡的运用

Application of Reinforced Soil Back Pressure Backfilling Technology in Expansive Soil Layer Cutting Slope

本文以新建玉溪至磨憨线铁路膨胀土高路堑施工为背景,以设计方案为依托,对施工中所遇到的开挖防护、路基坡面施工及边坡监测进行了介绍,对解决采用传统方法施工工期长、严重影响隧道进洞时间、坡面暴露时间长、易发生破坏坍塌等技术难题进行了说明,可为膨胀土相关路基施工和维护提供借鉴。

This paper takes the expansive soil high cutting construction of the newly built Yuxi-Mohan railway line as the background,and based on the design scheme,the excavation protection,roadbed slope construction and side slope monitoring encountered in the construction are introduced.The technical problems of the traditional method such as the long construction period,serious impact on the tunnel entry time,long slope exposure time,and the easy occurrence of damage and collapse are solved,which can provide reference for the construction and maintenance of expansive soil-related roadbeds.