土中胶结强度的微观研究  

MICROSCOPIC STUDY ON CEMENTATION STRENGTH IN SOILS

作　　者：程昌炳[1,2] 陈琼[1,2] 刘少军[1,2] 王远发 

机构地区：[1]中国科学院武汉岩土力学研究所 [2]武汉大学化学系

出　　处：《华中农业大学学报》1998年第2期143-149,共7页Journal of Huazhong Agricultural University

基　　金：国家自然科学基金

摘　　要：通过针铁矿胶结高岭土的电性、磁性和量子化学的研究结果，确定了其胶结键的类型和含量，建立了胶结键在该土中赋存的微观模型，求出了胶结强度的理论值，并与实验值进行了比较，其数量级相同。初步揭示了土的宏观力学性质与微观胶结特性的关系。Through study on electrical, magnetic and quantum chemical properties of kaolin cemented with goethite, the types and number of its cementation bonds are determined, and the microscopic model of the existed bonds in the cemented kaolin is established. The theoretical value of cementation strength is obtained, and a comparison with experimental value shows that the two are of the equal order of magnitude. Therefore, the present paper has thrown some light on the relation between the macroscopic mechanical properties of soil and its microscopic cementation features.

关 键 词：土壤胶结 氢键 强度 微观 

分 类 号：S152.1[农业科学—土壤学]