颗粒分析曲线在土水特征曲线预测中的应用

Application of particle analysis curve in prediction of soil water characteristic curve

土水特征曲线对于研究非饱和土的强度、渗透以及变形等特性具有重要的意义。根据土水特征曲线与土颗粒累积分布曲线在形状上相似的特点,介绍了由土的粒径分布曲线来计算土水特征曲线的物理经验模型,并进行了实际应用得到试验用土的土水特征曲线,该方法简单方便。

Soil water characteristic curve is of great significance to study the strength, permeability and deformation characteristics of unsaturated soil. According to the similar characteristics of the soil water characteristic curve and the cumulative distribution curve of soil particles in shape, this paper introduces the physical experience model of calculating the soil water characteristic curve by the soil particle size distribution curve, and obtains the soil water characteristic curve of the test soil by praetieai applieation. This method is simple and convenient.