The Properties of a Coal Body and Prediction of Compound Coal-Rock Dynamic Disasters

Table 4

Prediction cycle cuttings desorption index K₁ with changing hole depth.

Prediction hole depth (m)	1	2	3	4	5	6	7	8	9	10
Prediction times	9	93	30	82	27	66	23	55	18	33
K1max (ml/g·min^1/2)	0.06	0.34	0.22	0.37	0.3	0.35	0.21	0.46	0.21	0.33
K1max (ml/g·min^1/2)	0.01	0	0.01	0	0.02	0	0.01	0.02	0.01	0
Average value of K1 (ml/g·min^1/2)	0.03	0.08	0.07	0.08	0.08	0.07	0.06	0.07	0.08	0.07