Erodability of Sand-Clay Mixtures as Evaluated by a Water Jet

摘要

Laboratory produced soil samples were subjected to erosion by means of 1/4 in. and 3/8 in. diam. submerged water jets. Special care was taken to control all variables that could effect the soil system behavior. The influence on erosion of the sample mixing and curing procedures, the grain size distribution and the ratio of constituent materials, including water content, was given attention. Samples were made from commercial clay (grundite) mixed with one or two grades of Ottawa Sand. Compaction pressures were 2.0 psi. Both the rate of weight loss due to erosion and the undrained shear strength (using a laboratory vane) were determined. Obtained relationships between all named variables has been presented in both graphical and analytical form. (Author)