湘潭—邵阳高速公路膨胀土工程特性试验研究  

Experimental study of engineering characteristic of expansive soils in theexpressway of Xiangtan-Shaoyang

作　　者：杨果林[1] 王永和[1] 李献民[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《铁道科学与工程学报》2005年第1期62-67,共6页Journal of Railway Science and Engineering

基　　金：湖南省交通厅立项项目(200006)

摘　　要：针对湘潭—邵阳高速公路膨胀土实际工程,对典型膨胀土路段的膨胀土进行了自由膨胀率、界限含水量、颗粒分析、粘粒含量、矿物组成、土样描述、有荷(无荷)膨胀力(膨胀量)基本物理力学性质指标试验。对膨胀土的化学成分进行了分析,获得了该高速公路膨胀土的工程特性,得到该路段膨胀土的膨胀力、膨胀量、胀缩速度曲线、膨胀过程、收缩过程的特征,为膨胀土路基边坡工程设计与施工,膨胀土地基加固与路基病害的防治提供了参考依据。Engineering charactertic of expansive soils, expansive force, expansive value, swelling and shrinkage feature, which used in the expressway of Xingtan-Shaoyang, are obtained by test of rate free expansive, water content of limit, analysis of grain, clay content, mineral composition, soil deseribe, expansive stress, expansive value, basic phagsical and mechanical properties, chemical composition analyses. These could be used to guide design, construction, stabilization of expansive soil section of highway.

关 键 词：膨胀土 工程特性 化学成分 高速公路 湘潭市 邵阳市 

分 类 号：U416.167[交通运输工程—道路与铁道工程]