考虑非饱和土基质吸力影响的路基回弹模量研究  

Research on Subgrade Rebounding Modulus Allowing for Influence of Unsaturated Soil Base Suction

作　　者：李聪[1] 邓卫东[2] 张盛 

机构地区：[1]重庆交通大学,重庆400074 [2]重庆交通科研设计院,重庆400067 [3]浙江省三门县交通建设管理所,浙江三门317100

出　　处：《公路交通技术》2008年第4期5-7,12,共4页Technology of Highway and Transport

基　　金：交通部西部交通建设科技项目(200531874010)

摘　　要：通过室内承载板试验测试某地重塑黄土土样在不同压实度与含水量状态下的回弹模量,探讨回弹模量与两者之间的关系。同时,利用压力板仪测定土样的土-水特征曲线,进一步分析基质吸力对回弹模量的影响。This paper tests the rebounding modulus of remolded loess sample in a certain place under different compaction densities and water contents via the indoor loading plate test and probes the relationship between the rebounding modulus and above two factors. Meanwhile the paper also adopts the pressboard gauge to determine the soil- water characteristic curves of the soil sample, and furthermore analyses the impact of soil base suction on the rebounding modulus.

关 键 词：回弹模量 非饱和土 土-水特征曲线 基质吸力 

分 类 号：U416.1[交通运输工程—道路与铁道工程]