Lognormal Distribution Function for Describing Seepage Damage Process of Single-Cracked Rock

Table 3

Seepage tests results of single-cracked sandstone filled with cement mortar.

Conditions and results		2-1	2-2	2-3	2-4	2-5	2-6
Sample size (mm)	D	48.57	48.13	48.31	48.25	48.26	48.29
	H	98.64	98.41	99.21	98.80	98.17	99.02
Crack length		25%	25%	50%	50%	75%	75%
Density		2.34	2.32	2.31	2.32	2.30	2.31
Confining pressure		10.00	20.00	10.00	20.00	10.00	20.00
Pore pressure (top) (MPa)		7.00	7.00	7.00	7.00	7.00	7.00
Pore pressure (bottom) (MPa)		1.00	1.00	1.00	1.00	1.00	1.00
Osmotic pressure difference (MPa)		5.38∼5.93	5.87∼5.93	5.76∼5.83	5.80∼5.92	5.76∼5.87	5.93∼6.05
Peak stress		43.99	71.19	40.01	70.62	32.80	64.88
Peak strain		0.0081	0.0098	0.0067	0.0090	0.0054	0.0097
Permeability (Darcy)		7.94∼8.67	3.51∼3.64	8.35∼9.84	4.72∼4.90	11.62∼11.85	5.85∼6.06