湖南非饱和红粘土工程性质的试验研究  

A trial on the Properties of the HuNan Unsaturated Red Clay

作　　者：刘小平 袁腾方 杨迎冬 

机构地区：[1]湖南省桂武高速公路建设开发有限公司,湖南郴州424400 [2]云南省地质环境监测院,云南昆明650216

出　　处：《公路工程》2011年第2期48-52,共5页Highway Engineering

摘　　要：为了研究湖南广泛分布且天然含水量较大的高液限红粘土的非饱和性质,以便有利于指导高速公路路基填筑及边坡防护的施工设计。本文主要通过非饱和土试验研究了红粘土的土-水特征曲线(SWCC)及非饱和土的力学土性参数,且分析了土的粒径对土水特征曲线的影响及不同吸力下红粘土的强度变化情况。The red clay distributed widely in the HuNan province,which is of high natural moisture and high limit.The unsaturated soil property of the red soil such as SWCC of red soil and the earth parameter was studied by trial,meanwhile,the grain size of the soil impacted on the SWCC and the suction impacted on the strength of the red soil were analyzed respectively.The result can be used to direct the fill of roadbed and the design of slope protection.

关 键 词：红粘土 非饱和土 试验研究 工程性质 

分 类 号：U416.03[交通运输工程—道路与铁道工程]