Prediction Model for Spontaneous Combustion of Coal around Boreholes Using Bedding Gas Drainage

Table 2

Spontaneous combustion time.

Serial number	Negative pressure drainage (kPa)	Sealing length (m)	Sealing depth (m)	Seam temperature (K)	Time (d)
1	23	10	23	321.15	250
2	23	8	18	308.15	109
3	35	8	20	316.15	66
4	35	13	23	308.15	551
5	35	6	18	321.15	39
6	18	8	23	312.15	401
7	35	10	15	312.15	76.5
8	18	6	15	308.15	83
9	30	10	20	308.15	145
10	30	13	18	312.15	151
11	23	13	15	316.15	98
12	23	6	20	312.15	82
13	18	13	20	321.15	594
14	30	8	15	321.15	60
15	30	6	23	316.15	69
16	18	10	18	316.15	164