Table 2.

Model parameters

	Slab			Weak layer
Parameter	Exp_01	Exp_02	Exp_03	Exp_01	Exp_02	Exp_03
Density ρ (kg m−3)	279	255	159	100	100	100
Young’s modulus E (MPa)	12	8.5	2	1	1	1
Poisson’s ratio ν	0.3	0.3	0.3	0.3	0.3	0.3
Thickness D (cm)	70	75	26	7.5	15	1
Initial consolidation pressure $p_0^{\mathrm{ini}}$ (kPa)	93	75	24	11	22	4
Tension/compression ratio β	0.05	0.05	0.05	0.2	0.2	0.2
Friction coefficient M	0.5	0.5	0.5	0.5	0.5	0.5
Hardening factor ξ	30	30	30	0.25	0.07	0.05
Softening factor α	—	—	—	15	250	5