摘要
本文根据对轻亚粘土的动三轴液化试验和孔隙水压力消散方程的建立和分析,进一步阐述了轻亚粘土液化的实质以及振次(N)与固结比(K_0)、粘聚力(Cd)、内摩擦角(φd)变化规律。并指出Cd、φd值减小主要是由于结构破坏和薄膜水转化成自由水作用的结果。同时,提出轻亚粘土的液化势是随振动强度和历时而变化的动态液化势,是轻亚粘土液化的一种特殊机制。
On The basis of the kinetic-triaxial fluidiza-tion test of light loam and the establishment andanalysis of the pressure-dissipation equation ofpore water, further elucidation of the nature offluidization of light loam and the variation regu-a(?)es of vibration number(N), so(?)on ratio(K_o), coherent force(C_d)and internal friction angle(φ_d)is made. It is suggested also that thee deere-ase in C_d and φ_d values is mainly caused by thedestruction of structure and the transformation ofpellicular water into free water. At the same time,it is pointed out that the fluidization potential oflight loam is a dynamic fluidization potentialwhich varies with the vibration intensity and withtime, and is a special mechanism of the fluidiza-tion of light loam.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
1992年第5期38-42,共5页
Hydrogeology & Engineering Geology
