压实稳定粉土路基强度特性研究  

The Study on the Strength Characteristics of the Compacted Stabilized Silt Subgrade

作　　者：李劲 LI Jing(Yuncheng Branch of Shanxi Provincial Highway Bureau,Yuncheng,Shanxi 044000,China)

机构地区：[1]山西省公路局运城分局,山西运城044000

出　　处：《山西交通科技》2018年第4期36-38,共3页Shanxi Science & Technology of Transportation

摘　　要：采用承载板法和重复加载三轴试验探究某压实稳定粉土路基在最佳含水量、4种压实度下的回弹变形特性,分析了压实稳定粉土路基动态回弹模量与强度指标CBR的相互关系。重复加载三轴试验方法采用参照我国现行路基设计试验方法的三轴重复加载试验方法。研究得出:压实稳定粉土路基动态回弹模量与CBR和压实度呈双参数幂函数关系。Through bearing plate method and repeated loading triaxial test referring to the triaxial repeated loading test method of the prevailing subgrade design test method in our country, this paper explored the rebound deformation characteristics under optimum moisture content and four kinds of compactness for a compacted stabilizedsilt subgrade, and analyzed the relation between dynamic rebound modulus of the compacted stabilized siltsubgrade and strength index CBR. It was concluded that two-parameter power function relation existed in the dynamic rebound modulus of the compacted stabilized silt subgrade, CBR and compactness.

关 键 词：道路工程 压实稳定粉土 加州承载比CBR 动态回弹模量 重复加载三轴试验 

分 类 号：U412.222[交通运输工程—道路与铁道工程]