Experimental Research on Simulation Material for Water-Resisting Soil Layer in Mining Physical Simulation

Table 1

Physical and mechanical properties of red clay.

Red clay	Physical properties				Mechanical properties
	Water content W (%)	Void ratio e	Porosity n/%	Cohesive force c (kPa)	Internal friction angle φ (°)	Coefficient of compressibility MPa^−1	Modulus of  compression Es (Mpa)	Unconfined compressive strength qn (kPa)
	11.3∼17	0.6∼0.89	38∼46.1	42∼98	27.8∼33	0.1∼0.25	8∼21	110∼151