合宁客运专线膨胀土填料石灰改良试验研究  

Study on Lime Improved Expansive Soil Filling in Hefei-Nanjing Passenger Dedicated Line

作　　者：徐敦美 

机构地区：[1]中铁八局集团公司,成都610036

出　　处：《路基工程》2010年第2期121-123,共3页Subgrade Engineering

摘　　要：为解决合宁客运专线大量中弱膨胀土遇水膨胀、脱水干缩不能直接作为路基填料的问题,文中结合合宁客运专线工程,进行了膨胀土填料填筑路基的施工工艺试验研究。经工后沉降观测分析表明,石灰改良膨胀土作为路基填料的施工工艺,能满足客运专线路基的各项指标和要求。In order to solve the problem that moderate weak expansive oil along Hefei-Nanjing Passenger Dedicated Line cannot be directly used as subgrade filling for expansion in water and shrinkage out of water, this paper studies the construction technology for expansive soil filled subgrade combined with Hefei-Nanjing Passenger Dedicated Line engineering. It is indicated from post-construction settlement analysis that the construction technology with lime improved expansive soil as subgrade filling can satisfy each index and requirement of the subgrade of passenger dedicated line.

关 键 词：石灰 改良膨胀土 施工工艺 工后沉降 

分 类 号：U416.167[交通运输工程—道路与铁道工程]