山区高等级公路厚层软基路段预应力管桩结合弃土反压处理路基滑移分析  

Analysis of Subgrade Slip Treated by Prestressed Pipe Pile Combined with Spoil Back Pressure in Thick Soft Foundation Section of High Grade High⁃way in Mountainousarea

作　　者：郑继祖 ZHENG Jizu(Gansu Communications Planning Survey and Design Institute Co.,Ltd.,Lanzhou Gansu 730000)

机构地区：[1]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730000

出　　处：《河南科技》2021年第32期119-121,共3页Henan Science and Technology

摘　　要：随着国家对节能环保的高度重视,复合地基处治措施和边坡加固方案也朝着经济、绿色、低碳、节能、环保及可持续方面发展。本文以山区某一级公路厚层软基处治为例,对厚层软基采用预应力管桩进行处治,同时结合弃土反压解决路基滑移。实践证明:该设计方案取得了良好的社会效益和经济效益。With the high attention of the state to energy conservation and environmental protection,the treat⁃ment measures of composite foundation and the reinforcement scheme of slope are also developing towards econ⁃omy,green,low-carbon,energy conservation,environmental protection and sustainability.Taking the treatment measures of thick soft foundation of a class highway in mountainous area as an example,the prestressed pipe pile is used to treat the thick soft foundation,and the subgrade slip is solved in combination with the back pres⁃sure of spoil.Practice shows that the design scheme has achieved good social and economic benefits.

关 键 词：路基滑移 湿软黄土 预应力管桩 

分 类 号：U416.1[交通运输工程—道路与铁道工程]