The Role of Water and Lithology on the Deformation and Failure of an Anaclinal Rock Slope in a Hydropower Reservoir

Table 4

Summary of test results of mechanical property for the rock mass in the Zhengjiaping slope (the value is average level of test results).

Horizontal depth of sampling location (m)	Lithology	Dry density (g/cm^3)	Specific gravity	Water saturated absorptivity (%)	Dry compressive strength (MPa)	Saturated compressive strength (MPa)	Softening coefficient	Modulus of elasticity (GPa)	Poisson’s ratio
23	Argillaceous siltstone	2.65	2.68	0.30	85.77	70.33	0.82	31.43	0.23
49	Argillaceous siltstone	2.67	2.69	0.27	110.93	90.80	0.82	36.00	0.23
68	Sandstone	2.68	2.70	0.22	96.13	73.20	0.76	33.70	0.23
76	Sandstone	2.57	2.60	0.47	48.30	33.70	0.70	24.33	0.27