Mechanical Properties of Deep Variable Dip Joint Rock Mass in Reservoir Area under Wet and Dry Conditions

Table 1

The change rate of joint rock morphology parameters (%).

Sample status	Pore water pressure (MPa); Morphology parameters	0	5	10	20	0	5	10	20
		The lower part of the sample (concave surface)				The upper part of the rock specimen (convex surface)
Dry samples	S q	31.88	−34.02	−0.62	−8.90	−14.80	−35.77	4.19	−13.88
	S a	−6.22	−30.04	14.83	3.27	−13.00	−31.65	6.22	−11.65
	S mc	−11.44	−29.05	18.38	−16.60	−16.05	−41.29	−7.45	4.02
	S al	−4.78	−5.71	−0.03	−9.31	1.66	0.72	1.31	−0.87
Saturated samples	S q	0.21	4.99	75.30	1.29	−24.06	−18.77	−7.87	−2.87
	S a	3.78	2.59	67.57	9.20	−20.11	−14.16	−6.37	−0.61
	S mc	3.48	−8.35	46.55	18.90	−29.41	−7.54	−5.26	2.79
	S al	−0.24	−3.62	−9.52	4.35	0.40	−6.44	1.73	−2.86