Material Point Method-Based Simulation of Run-Out Characteristics for a Soil–Rock Mixed Landslide Induced by Surcharge

Table 1

Mechanical parameters of the SRM slope.

Parameters	Soil	Stone	Stacked objects
Density, ρ (kg/m^3)	1,800	2,410	2,000
Young’s modulus, E (MPa)	50	20,000	50
Poisson’s ratio, ν	0.35	0.2	0.35
Internal friction angle, ϕ (°)	24	42	24
Cohesion, c (kPa)	30	900	30
Dilatancy angle, ψ (°)	24	42	24
Constitutive model	Drucker–Prager	Drucker–Prager	Elastic