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

Table 7

Fractal dimension and correlation coefficient of each block.

Block number	Fractal dimension	Correlation coefficient	Block number	Fractal dimension	Correlation coefficient
1	1.2644	0.9893	17	1.5838	0.9981
2	1.0247	0.9665	18	0.9007	0.9836
3	1.1963	0.9879	19	1.3422	0.9730
4	1.0095	0.9648	20	1.4700	0.9820
5	1.0000	1.0000	21	1.3262	0.9705
6	0.7551	0.9884	22	1.3415	0.9903
7	0.6000	0.9000	23	1.5965	0.9823
8	1.1755	0.9854	24	1.4548	0.9841
9	0.9007	0.9836	25	1.4966	0.9853
10	1.1288	0.9968	26	1.3136	0.9862
11	1.4963	0.9721	27	1.5030	0.9809
12	0.8340	0.9902	28	1.2943	0.9927
13	1.2807	0.9661	29	1.4066	0.9713
14	1.5975	0.9823	30	1.3222	0.9950
15	1.0247	0.9665	31	1.0703	0.9749
16	1.8279	0.9941