Among three typical soils: sand, silt and silty clay, damp in silty clay was maximum, that in sand was minimum and that in silt was between the former two under the same soil stress.

• 对于砂土、粉土、粉质粘土，在相同应力状态下，粉质粘土的阻尼作用最大，粉土次之，砂土最小；