岩土工程学报2016，Vol.38Issue(10)：1797-1801,5.DOI:10.11779/CJGE201610008
基于动态多步流动法的非饱和土水力特性测试研究
Dynamic multi-step outflow method for tests on hydraulic properties of unsaturated soils
摘要
Abstract
Hydraulic properties of unsaturated soils play an important role in the studiesonunsaturated soils. Because the traditional testing method takesalong time,adynamic multi-stepoutflow method for fast determination of hydraulic characteristics of unsaturated soils is proposed. The method is based on thethermodynamic mixture of theoretical models proposed byWei & Dewoolkar to derive saturation evolution equationsto describe the non-equilibrium unsaturated soil by conducting two dynamic multi-step flow experiments on silt and silt clay samples.The dynamic evolution equationsfor saturationare sovedaccording to thetest results,and when the samplesare in equilibrium state, thesoil water characteristic curve and permeability function are obtained. This method does not solve the initial boundary values, just needs test dataof dynamic multi-stepoutflow to solve theevolution equationsfor saturation, andthushydraulic parameters of the samplesare obtained.Compared with other methods, this method is more simple and effective.关键词
联合测试系统/多步流动试验/土水特征曲线/渗透函数Key words
combined testing system/multi-step outflow test/soil-water characteristic curve/hydraulic conductivity function分类
建筑与水利引用本文复制引用
伊盼盼,牛圣宽,韦昌富,陈盼..基于动态多步流动法的非饱和土水力特性测试研究[J].岩土工程学报,2016,38(10):1797-1801,5.基金项目
国家自然科学基金项目（11302243）；湖北省建设科技计划项目；湖北省教育厅科研计划项目 （）
