Mechanical property of soils by measuring contact pressure distribution

According to the loading plate test, the coefficient of subgrade reaction ratio between inside plate and outside plate is defined in terms of the relationship between settlement and average load intensity. Relationship between the distribution of subgrade reaction and internal friction angle obtained from the triaxial compression test is discussed. The conclusions in this study are as follows; (1) Coefficient of subgrade reaction ratio differs for kind of geomaterials, particularly the values reflects the difference of sandy soil and cohesive soil definitely. (2) Internal friction angles in terms of total stress on various geomaterials have a close relationship with the subgrade reaction ratio. (3) The geomaterials can be classified into c material, c and material, and material using the coefficient of subgrade reaction ratio.