Gas Seepage Model and Experiment Based on Bedding Effect of Fractured Coal Body

Table 6

Permeability loss rate of coal sample under the same effective stress.

Effective stress	DP1 (%)	DP2 (%)	DV1 (%)	DV2 (%)
11.75	37.22	39.82	1.03	1.14
10.42	53.02	50.78	1.64	1.30
9.08	61.16	61.19	9.81	9.39
7.75	67.28	67.60	15.30	14.97
6.42	74.62	75.52	17.91	18.48
5.08	83.03	82.68	19.54	19.94