Study on Critical Hydraulic Gradient Theory of Flow Soil Failure in Cohesive Soil Foundation

Table 5

Results of experiments and calculation for critical hydraulic gradient.

Soil type	Dry density (g/cm^3)	Initial water content	Sample water content	Soil sample volume	/literature test	/formula calculation
Clay [31]	1.70	5.1%	20.1%	120 cm^3	110	119.96
Silty clay [32]	1.70	5.1%	20.1%	120 cm^3	70	77.67
Silty clay [32]	1.61	22.5%	20%	120 cm^3	45	49.17