摘要
基于黄土路基压实后土体的基本性质,根据路基土中水分运动的基本方程,通过室内一维土柱入渗试验,得到不同压实度的黄土湿润锋湿度与平均湿度、水分入渗速率的关系曲线。由黄土中水分再分布过程确定压实黄土路基的导水参数和水分扩散参数,并分析压实黄土路基内水分迁移,得出相应的黄土路基中水分入渗规律,为黄土路基严格控制压实度提供重要的理论依据。
<Abstrcat>According to the basic equation for water flow in subgrade soil,based on the basic soil properties of compacted loess,the redistribution of soil moisture and the soil water-migrate parameters are studied.By analyzing the water-migrate in compacted loess,the regularity of moisture infiltration was educed in loess subgrade,providing important theoretical basis for drainage disign.
出处
《公路交通科技》
CAS
CSCD
北大核心
2005年第7期52-54,63,共4页
Journal of Highway and Transportation Research and Development
关键词
压实黄土
路基
水分迁移
一维土柱
Compacted loess
Subgrade
Moisture migrate
One-dimension soil column
