摘要
硫酸盐渍土的盐-冻胀先决条件是温度的变化。土壤的温度变化速率是有其导热系数决定的,本试验采用热线法对试验土样不同含盐量、不同含水率、不同干密度的导热系数进行分组测量分析,以优化路基土内的含盐量、含水率、干密度来控制减慢路基内的温度下降速率,减轻硫酸盐盐渍土地区道路病害的发生。
Sulphate saline soil salt - frost heave prerequisite is the change in temperature. Soil temperature change rate is determined by its coefficient of thermal conductivity, this experiment adopts the hofline method to test soil sample of different salt content, moisture content, dry density grouping coefficient of thermal conductivity measurement analysis, to optimize the subgrade soil salt content, moisture content, dry density to control the temperature of the subgrade in slow decline rate, reduce the damages of sulfate saline soil area.
作者
张灵通
杨保存
李寿宁
Zhang Lingtong Yang Baoeun Li Shouning(College of Water Resource and Architectural Engineering, Tarim University, Alar, Xinjiang 84330)
出处
《塔里木大学学报》
2015年第4期78-82,共5页
Journal of Tarim University
基金
国家自然科学基金(51168042)
关键词
盐渍土
含盐量
含水率
干密度
saline soil
the salt content
the moisture content
dry density
