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一、前言 滤层的设计方法自从Terzaghi提出以后,经过许多学者的努力,有所改进.如Silveira将概率论用于滤层设计,是一个很有意义的尝试. 滤层的颗粒大小及其在空间的位置是随机的,因此,滤层的孔隙大小及其在空间的分布也是随机的.又因滤层中水流速度也是随机变量,致使被保护土中的细颗粒向滤层
I. INTRODUCTION Since the design of filter layer has been proposed by Terzaghi, it has been improved by the efforts of many scholars. For example, Silveira applied probability theory to filter layer design. It is a very meaningful attempt. The particle size of the filter layer and its The position of the space is random, therefore, the pore size of the filter layer and its distribution in space are also random. The flow velocity in the filter layer is also a random variable, resulting in the fine particles in the protected soil to the filter layer.