Study on the Permeability Evolution and Its Formation Mechanism of Xiaojihan Aquifer Coal Seam under Plastic Flow

Table 13

The permeability recovery coefficient of water-bearing specimen.

Axial strain (%)	Permeability recovery coefficient
	X-1.61	0.80	0.84	0.85	0.86
X-1.72	0.79	0.78	0.82	0.84
X-1.79	0.77	0.78	0.80	0.83
X-1.81	0.72	0.77	0.79	0.81
X-2.01	0.74	0.73	0.74	0.75