Instability Process Model Test for Bedding Rock Slope with Weak Interlayer under Different Rainfall Conditions

Table 4

Prototype and model slope of rock and soil mechanics parameters.

	Lithology of structural layer	Specific weight (kN·m^−3)	Internal friction angle (°)	Cohesion c (kPa)	Elastic modulus E (MPa)	Poisson’s ratio	Permeability coefficient K (cm·s^−1)
Prototype slope	Strongly weathered shale and residual soil layer	26	32	256	2700	0.29	1.21  10^–6
	Strong weathering weak interlayer	17	16	56	900	0.42	3.26  10^–4
	Medium weathered shale layer	32	52	452	6300	0.18	6.53  10^–7
Model slope	Strongly weathered shale and residual soil layer	26 (25)	32 (31)	5 (7)	54 (55)	0.29	1.71  10^−7 (1.75  10^−7)
	Strong weathering weak interlayer	17 (18)	16 (18)	1 (1)	18 (17)	0.42	4.61  10^−5 (4.68  10^−7)
	Medium weathered shale layer	32 (32)	52 (50)	9 (12)	1260 (1256)	0.18	9.23  10^−8 (9.30  10^−7)

Note. Value of the test results of similar materials.