堆石体渗透特性的试验研究

Effect of Particle-size Characteristic on the Seepage Property of Rockfill

研究表明堆石体的级配特征对其渗透特性有很大影响,在渗流速度较大时应对达西定律加以修正,结合作者提出的堆石体颗粒的概率统计分布模型,建立了堆石体颗粒含量与渗透系数之间的经验关系式,把渗透率、堆石体颗粒几何平均粒径和粒径分布函数的标准差有机的结合起来。

It is proved that gradation affects the seepage property of rockfill and Darcy law should be revised to adapt to high seepage velocity. And an experiential formula is established to describe the relationship between particle content and seepage coefficient through probability statistic distribution characteristics of particle in rockfill. So the seepage rate, the geometric average value of rockfill particles and unbiased variance for logarithm of particle can be organically combined together. 