The Law of Instability and Failure of the Slope of Dumping Site: A Case Study in Inner Mongolia, China

Table 2

Physical and mechanical parameters of rock and soil.

Lithology	Density (g/cm^3)	Cohesion (kPa)	Internal friction angle (°)	Modulus of elasticity (GPa)	Poisson’s ratio
Waste materials	1.990	16.5	14.8	0.358	0.4
Grey blue clay	1.901	20.6	20.9	0.410	0.46
Grey black clay	2.009	25.4	26.7	0.524	0.4
Bedrock	1.970	128.9	18.5	0.746	0.309