Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action

Table 5

α and β for different normal stresses.

Normal stress N (MPa)	α	β	R^2
1.27	0.1313	0.4137	0.8456
1.91	0.1501	0.3025	0.9275
2.23	0.1547	0.271	0.9713