工程地质学报2017，Vol.25Issue(2)：330-335,6.DOI:10.13544/j.cnki.jeg.2017.02.009
湿陷性黄土地基侧向防渗结构模型试验研究
MODEL EXPERIMENTAL RESEARCH ON STRUCTURE OF LATERAL SEEPAGE CONTROL IN COLLAPSIBLE LOESS FOUNDATION
摘要
Abstract
Water plays a pivotal role in influencing collapsible loess foundation.In this article,the physical and mechanical parameters of loess and lime soil in Lanzhou are obtained through indoor geotechnical test.The effect of different structures to control lateral seepage in subgrade loess soil is studied through indoor model test.At the same time,the settlement of roadbed is monitored.The experimental results reveal that the permeability coefficient of the lime soil is much less than the coefficient of permeability of loess.After processed by lime-soil compaction pile and lime-soil impervious wall,the moisture content of loess is far less than the value that the lateral seepage control processing is not made.Collapsibility deformation of subgrade is obviously improved.The effect of lime-soil impervious wall is better than the lime-soil compaction pile.The test results can guide the collapsible loess subgrade seepage prevention effectively,and provide a new idea for collapsible loess foundation treatment.关键词
湿陷黄土/侧向防渗/模型试验Key words
Collapsible loess/Lateral seepage/Model test分类
建筑与水利引用本文复制引用
朱景汕,王旭,蒋代军,张正瑞..湿陷性黄土地基侧向防渗结构模型试验研究[J].工程地质学报,2017,25(2):330-335,6.基金项目
中国中铁重点课题(302566)资助. （302566）
