Surficial Failure of Expansive Soil Cutting Slope and Its Flexible Support Treatment Technology

Table 3

Physical and mechanical properties of expansive soil.

	Unit weight (kN)	Saturated permeability coefficient (m/s)	Effective friction angle (°)	Effective cohesion (kPa)
Soil properties	20	2.3e^−7	9, 12, 15, 18, 21, 24	0, 1, 2, 3, 5, 7.5, 10, 15, 20, 25, 30