Permeability Characteristics of Water-Sand Seepage in Fracture by Experiment

Table 2

Typical shapes and conditions of hysteresis curve at b = 0.75 mm.

(kg/m^3)	(mm)
	0.092∼0.138	0.138∼0.184	0.184∼0.230	0.230∼0.276
20	I	II	III	III
40	I	II	III	III
60	II	II	III	III
80	III	III	III	IV