Determination of Mohr–Coulomb Parameters from Nonlinear Strength Criteria for 3D Slopes

Table 2

The equivalent cohesive for various soils.

	β (°)	m
		1.2	1.4	1.6	1.8	2.0	2.2	2.5
0.5	20	2.46	1.82	1.62	1.52	1.45	1.41	1.35
	30	1.30	1.29	1.27	1.24	1.22	1.20	1.18
	40	1.12	1.15	1.15	1.14	1.13	1.12	1.11
	50	1.07	1.09	1.09	1.09	1.09	1.08	1.08
	60	1.04	1.06	1.06	1.06	1.06	1.06	1.05
1.0	20	42.32	6.05	3.39	2.61	2.23	2.01	1.80
	30	5.30	2.54	2.02	1.78	1.64	1.54	1.45
	40	1.90	1.65	1.53	1.45	1.39	1.35	1.30
	50	1.32	1.34	1.31	1.29	1.26	1.24	1.21
	60	1.15	1.19	1.20	1.19	1.18	1.17	1.15
2.0	20	1329.29	31.19	9.68	5.55	4.03	3.26	2.64
	30	136.66	10.52	4.87	3.37	2.70	2.33	2.01
	40	22.55	4.76	3.02	2.41	2.09	1.89	1.71
	50	5.04	2.65	2.14	1.89	1.73	1.63	1.52
	60	1.93	1.77	1.66	1.58	1.51	1.45	1.38
3.0	20	10061.7	85.18	18.72	9.03	5.91	4.47	3.39
	30	1033.92	28.09	9.13	5.32	3.87	3.13	2.53
	40	165.56	11.87	5.35	3.64	2.89	2.47	2.11
	50	30.59	5.68	3.46	2.69	2.30	2.06	1.83
	60	5.95	3.00	2.40	2.10	1.90	1.77	1.63
5.0	20	129396	304.20	43.49	16.95	9.74	6.76	4.71
	30	13296.2	99.87	21.00	9.83	6.27	4.66	3.47
	40	2123.08	41.33	11.97	6.56	4.58	3.61	2.84
	50	383.73	18.62	7.34	4.65	3.53	2.93	2.42
	60	62.77	8.37	4.61	3.40	2.80	2.44	2.11