摘要
本文在一维大变形固结理论研究的基础上,给出了大变形固结系数的定义及其不同描述方法时的具体表达式,并采用土体e~logσ′和e~logk线性假定,探讨了一维大变形固结系数在固结过程中的变化规律.通过研究表明,考虑土体大变形性状的一维固结系数是有效应力(或孔隙比)的函数,其变化规律与土的物理力学特性有关.
Based on the research of the one dimensional large strain consolidation theory,the expressions of large strain coefficient of consolidation in different coordinates are given in this paper.In order to study the development regularity of lareg strain coefficient of consolidation ,it is supposed that the coefficient of permeability and the effective stress follow the semi logarithm linear relation with void ratio.It is shown that the coefficient of consolidation is the function of the effective stress or void ratio,and its development regularity is related to the physical and mechanical characteristics of soil.
基金
国家自然科学基金
浙江省自然科学基金
关键词
固结系数
大变形
渗透性
压缩性
饱和土
coefficient of consolidation
large strain
permeability
compressibility