岩土工程学报Issue(5)：827-835,9.DOI:10.11779/CJGE201405004
考虑初始孔隙比影响的非饱和土相对渗透系数方程
Approach for predicting the relative coefficient of permeability of unsaturated soils with different initial void ratios
摘要
Abstract
A simple approach is proposed to quantify the effect of the initial void ratio on the relative coefficient of permeability for unsaturated soils based on the incremental relationship between the degree of saturation and the initial void ratio and the prediction of the permeability function for unsaturated soils by use of the soil-water characteristic curve (SWCC). For a given soil and the SWCC equation, only one additional parameter is introduced, which can be conveniently calibrated by the conventional SWCC tests. The relative coefficient of permeability for the same soil with different initial void ratios can be predicted by this approach. The proposed approach is validated through experimental data from the literatures in which both the SWCCs and the coefficients of permeability with different initial void ratios are measured.关键词
非饱和土/土水特征曲线/渗透系数/初始孔隙比Key words
unsaturated soil/soil water characteristic curve/coefficient of permeability/initial void ratio分类
建筑与水利引用本文复制引用
蔡国庆,盛岱超,周安楠..考虑初始孔隙比影响的非饱和土相对渗透系数方程[J].岩土工程学报,2014,(5):827-835,9.基金项目
国家自然科学基金项目（51208031，51278047）；国家重点基础研究发展计划（973计划）项目 （）
