Abstract
The one-dimensional compression test, single particle crushing test and observation by microscope were carried out for four kinds of crushable soil and two kinds of silica sand. The particle roughness and single particle crushing strength variability of crushable soils were larger than that of silica sands. It was proven that the yield stress of the crushable soil was lower than that of the silica sand. The yield stress was shown to be related at d50 single particle crushing strength. It was further shown that the curvature of a compression curve was dependent on the variance of single particle crushing strength.
