Experimental Study on Expansion Characteristics of Honghe Mengzi Expansive Soil Improvement
In engineering construction,when special soil is used as the roadbed,it is usually necessary to carry out soil improvement treat-ment.Expansive soil is widely distributed in the southwest region.Taking the expansive soil of a project in Honghe Mengzi as an example,this article takes local materials and improves the expansive soil with different dosages of lime,fly ash,and cement to study the changes in the ex-pansive characteristics of the improved expansive soil.The research results indicate that with the increase of lime,fly ash,and cement con-tent,the expansion rate of improved expansive soil gradually decreases,and the expansion force also gradually decreases.At the same dosage,the degree of reduction in expansion rate,expansion force,and improvement effect of the three types of admixtures are in the following order:improved soil with lime added>improved soil with cement added>improved soil with fly ash added.
Soil improvementExpansive soilExpansion rateExpansion force
国家科技期刊平台
NSTL
万方数据
