2004•Xibei Nong-Lin Keji Daxue xuebao. Ziran kexue banRequires access
Variation characteristics of soil structure of unsaturated loess
Luo Ya-sheng, Xie Ding-yi
Open publisher page 4 citations
Abstract
With the primary data obtained in the confined compression tests of unsaturated loess including Yangling intact loess and men-made structural loess,the comprehensive structure potential parameters of unsaturated loess are calculated under different structure conditions in this paper.Based on the above,the variation characteristics of soil structure of unsaturated loess are studied under the condition of confined compression test,and thereby,the useful quest using the research outcomes of characteristics of soil structure to solve the engineering problem of loess is made out.The research results show that the water content in intact structural loess influences the structural parameter obviously,i.e.,the lower water content,the bigger structural parameter according to same pressure,especially at the areas of low water content,the structural characteristics are influenced by the variation of water content strongly;and for the man-made structural loess,the structural characteristics of loess are influenced by the coupling factors including density,water content and cement content,etc.The collective performance is that,the lower is the dry density,the smaller is the water content,the higher is the cement content,and the stronger are the structural characteristics of loess.