Study on Seepage Characteristics of Radial Flow in Rock Mass Based on Radius Effect

Table 4

Fracture aperture under different working conditions.

Test	1	2	3	4	5	6	7	8	9	10
Normal stress (MPa)	1.27	1.59	1.91	2.23	2.55	1.91	1.91	1.91	1.91	1.91
Hydraulic pressure (MPa)	0.6	0.6	0.6	0.6	0.6	0	0.2	0.4	0.6	0.8
Effective stress (MPa)	1.07	1.39	1.71	2.03	2.35	1.91	1.84	1.78	1.71	1.64
Fracture width (mm)	0.741	0.701	0.631	0.561	0.541	0.681	0.571	0.611	0.631	0.661