泥沙的群体沉降速度

本文讨论了在浓度很高时候,泥沙的群体沉降速度.作者认为所谓泥沙的群体沉降速度问题从物理本质来说并不是真正的沉降速度问题,而是水在泥沙和水所组成的胶团形成的多孔介质中的渗流问题,也就是水流经这种多孔介质所形成的问题.作者根据这样的认识,写出了泥沙群体沉降速度的数学表达式,并且和黄委会水科所测量得到的实验数据进行了比较.比较的结果是令人满意的.

The Velocity of the Collective Motion of Sedimentation of Sand and Clay

In this article, we shall discuss the velocity of the collective motion of sedimentation when the concentration of clay particles is very high. We believe that the problem of the so-called velocity of the collective motion of sedimentation is not a real problem of sedimentation in physical nature, but it is a problem of filtration in the porous medium which is composed of colloidal clusters. That is to say, those clusters consist of water and clay particles.It is a problem of the water passing through the porous medium. Based upon this consideration, we put down the mathematical expression of the velocity of the collective motion of sedimentation. In comparing with the theoretical curves with the experimental data of the Institute of Hydraulic Research, of the Yellow River Conservancy Commission, we get congruous results.