Quantitative Evaluation for the Threat Degree of a Thermal Reservoir to Deep Coal Mining

Table 8

Fractal dimension values of the faults in the block where the borehole is located.

Borehole number	Fractal dimension	Drilling number	Fractal dimension	Drilling number	Fractal dimension	Drilling number	Fractal dimension
Qs1	0.7551	Qs8	1.1755	Sx2	1.5838	Zc1	1.4548
Qs2	0.7551	Qs9	1.4963	Sx3	1.5838	Zc2	1.4548
Qs3	1.1755	Qs10	1.4963	Tk1	1.0247	Zc3	1.4966
Qs4	1.1755	Qs11	1.4963	Tk2	1.0247	Zc4	1.4548
Qs5	0.9007	Qs12	1.4963	Tk3	1.3262	Zc5	1.4966
Qs6	0.9007	Qs13	1.4963	Tk4	1.3262	Zc6	1.4966
Qs7	0.9007	Sx1	1.5975	Tk5	1.3262	Zc7	1.4548