Silty clay: soft plastic, the thickness is small, medium compression, gradually softened top-down soil, poor mechanical properties of engineering, as little load alternative construction (structure) of shallow foundation bearing stratum.
Powder clay: soft plastic, small thickness, medium compression, soil from top to bottom gradually soft, poor engineering mechanics, optional load is not large construction (structure) building shallow base holding layer.
Silty clay: soft plastic, with small thickness and medium compressibility. The soil gradually becomes soft from top to bottom, with poor engineering mechanical properties. It can be used as the bearing stratum of shallow foundation of buildings (structures) with small load.<br>