摘要
膨胀土掺石灰后其性质有很多改变。通过对荆宜高速公路膨胀土的石灰改性试验,得到了膨胀土加石灰后的工程性质的变化规律,如自由膨胀率、膨胀量、收缩率、塑性指数下降、抗剪强度与CBR增加等。从而为改善膨胀土的工程性质以满足工程设计的要求提供了可靠的试验数据。
The properties of expansive soil have many c the testing data of the lime mixed expansive soil from the hanges after it is mixed with lime. This expressway of Yichang - Jingmen. The gineering properties of expansive soil mixed with lime are obtained. It decreases the free swelling pacity, shrinkage ratio and plastic index. It increases the shear strength and CBR. The research paper is based on changes in the en- ratio, swelling caresult can provide accurate testing data for improving the engineering properties of expansive soil in order to satisfying the requirements of the expressway engineering design.
出处
《工程地质学报》
CSCD
北大核心
2009年第3期421-425,共5页
Journal of Engineering Geology
关键词
膨胀土
胀缩特性
石灰改性
Expansive soil, Swelling, Shrinkage, Lime, Soil improvement, Expressway
