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

Table 21

Borehole level characteristic value and threat degree level.

Borehole number	Level characteristic value					Threat degree level
	,	,	,	,	Mean value
Qs1	3.7987	3.7685	3.9472	3.9267	3.8603	V
Qs2	3.1859	3.1691	3.4444	3.4207	3.3050	IV
Qs3	2.5265	2.5628	2.4522	2.5588	2.5250	III
Qs4	2.2011	2.2613	2.0194	2.0668	2.1372	II
Qs5	4.2872	4.1676	4.8764	4.8075	4.5347	V
Qs6	1.8210	1.8441	1.6587	1.6617	1.7464	I
Qs7	2.5865	2.6138	1.8951	1.8889	2.2461	II
Qs8	3.5078	3.4391	4.0806	3.9407	3.7421	V
Qs9	3.4943	3.4589	3.5209	3.5204	3.4986	IV
Qs10	3.1276	3.1309	3.2121	3.2368	3.1768	IV
Qs11	3.2272	3.2326	3.3266	3.3260	3.2781	IV
Qs12	2.9278	2.8802	2.7781	2.6720	2.8145	III
Qs13	2.5854	2.9463	1.7968	2.5684	2.4742	II
Sx1	3.8993	3.9521	4.5876	4.6299	4.2672	V
Sx2	3.0592	3.0541	2.9384	3.0072	3.0147	IV
Sx3	2.5640	2.7300	2.1946	2.5243	2.5032	III
Tk1	1.2672	1.3886	1.0412	1.0935	1.1976	I
Tk2	2.7366	2.9585	2.6189	2.9054	2.8048	III
Tk3	1.8434	2.1897	1.2607	1.7741	1.7670	I
Tk4	3.1855	3.1930	3.0486	2.9762	3.1008	IV
Tk5	3.9012	3.7841	3.9331	3.7070	3.8313	V
Zc1	3.3253	3.3231	3.6613	3.6741	3.4959	IV
Zc2	2.9098	2.7651	2.6888	2.2687	2.6581	III
Zc3	2.7722	3.1029	2.5133	3.2040	2.8981	III
Zc4	3.7228	3.5441	3.9969	3.9215	3.7963	V
Zc5	3.1836	3.1898	3.3773	3.4149	3.2914	IV
Zc6	3.3586	3.4039	3.3745	3.8063	3.4858	IV
Zc7	3.8714	3.8507	4.4635	4.4201	4.1514	V