辽宁省典型公路土回弹模量试验研究  

Experimental Research on Modulus of Resilience of Typical Highway Soil in Liaoning Province

作　　者：鄂宇辉 

机构地区：[1]辽宁省交通工程质量与安全监督局,沈阳市110005

出　　处：《北方交通》2017年第2期64-67,共4页Northern Communications

基　　金：辽宁省交通厅2016年科研项目(201604)

摘　　要：选取辽宁省典型公路的土样开展室内回弹模量重复加载三轴试验,研究偏应力、体应力、含水率等因素对动态回弹模量的影响。结果表明,随着偏应力的降低和体应力的增加以及含水率的降低,路基土的回弹模量会有显著的增加。根据所得数据采用三参数复合模型进行回归分析。Soil samples of typical highway in Liaoning province are selected to perform repeated loading triaxial test on modulus of resilience, and the research on theinfluence of factors like deviatoric stress, volume stress, moisture content and etc. on dynamic modulus of resilience is made. The result shows that, with the decrease of deviatoric stress and increase of volume stress and decrease of moisture content, the modulus of resilience of subgrade soil will have remarkable increase. Based on data obtained, the regression analysis is made by adopting three parameter complex model.

关 键 词：典型公路土 回弹模量 偏应力 体应力 含水率 三参数复合模型 回归分析 

分 类 号：U416.03[交通运输工程—道路与铁道工程]