Table 2 Typical coal bump mine discrimination formula calculation results.
Serial number | Coal mine name | Dead weight stress/Pa | Maximum horizontal principal stress/Pa | Minimum horizontal principal stress/Pa | Part one /MJ | Part two /MJ | Part three /MJ | Part four/MJ |
|---|---|---|---|---|---|---|---|---|
1 | 9 coal seam of Jixian coal mine in Heilongjiang | 37,490,000 | 63,630,000 | 32,350,000 | 0.81 | 2.30 | -0.90 | 1.71 |
2 | Working Face 83,003, Laohutai Coal Mine, Fushun | 17,640,000 | 32,200,000 | 15,850,000 | 1.67 | 3.00 | -0.90 | 2.57 |
3 | Wudong Coal Mine, Xinjiang + 500 m horizontal B3 + 6 working face | 4,700,000 | 14,580,000 | 3,500,000 | 3.37 | 8.59 | -0.97 | 4.34 |
4 | 330 West Wing Track Alley of Liangbaosi Coal Mine in Feicheng | 9,313,000 | 25,836,000 | 8,387,000 | 4.85 | 6.54 | -0.95 | 5.80 |
5 | 17 Coal Seam of Junde Coal Mine in Heilongjiang | 13,200,000 | 30,500,000 | 14,410,000 | 3.32 | 4.57 | -0.94 | 4.26 |
6 | Transportation of 305 fully mechanized mining face in Longjiabao Coal Mine, Jilin Province | 19,290,000 | 29,730,000 | 16,100,000 | 0.98 | 2.31 | -0.95 | 1.93 |
7 | 2151 working face of Tangshan coal mine in Kailuan | 20,090,000 | 33,330,000 | 19,600,000 | 1.30 | 2.58 | -0.94 | 2.25 |
8 | No. 12 Coal Seam, Hongyang No.3 Coal Mine, Shenyang | 17,610,000 | 28,610,000 | 11,450,000 | 1.56 | 2.73 | -0.98 | 2.53 |
9 | 1303Â N-1 working face of No. 3 coal mine in Xinjulong Coal Mine, Shandong Province | 14,800,000 | 35,500,000 | 16,100,000 | 0.75 | 3.67 | -0.80 | 1.55 |
10 | Working Face 0291, South Five Mining Area, 8–9 Coal Seam, Tangshan Coal Mine, Kailuan | 25,866,000 | 33,165,000 | 28,242,500 | 0.97 | 2.50 | -0.89 | 1.86 |
11 | 30 Coal Seam of Dongrong No.3 Coal Mine, Heilongjiang Province | 34,120,000 | 19,910,000 | 21,500,000 | 1.04 | 2.52 | -0.92 | 1.96 |
12 | 3306 working face of 3 coal seam in the third mining area of Xingcun Coal Mine, Shandong Province | 30,000,000 | 30,000,000 | 7,500,000 | 0.46 | 1.46 | -0.98 | 1.43 |
13 | No. 4 coal seam of Mengcun Coal Mine, Binchang, Shaanxi Province | 19,440,000 | 31,000,000 | 26,000,000 | 2.50 | 3.99 | -0.98 | 3.47 |
14 | 1363 working face of Fuxin Evergrande Coal Mine | 14868932.04 | 30,630,000 | 13553097.35 | 0.73 | 3.94 | -0.96 | 1.69 |
15 | 9302 Track Shun, No.4 Mining Area, Jier Coal Mine, Yanzhou, Shandong Province | 17,010,000 | 26,990,000 | 9,750,000 | 1.81 | 2.93 | -0.99 | 2.80 |
16 | Henan Yima Qianqiu Coal Mine | 19,540,000 | 19,460,000 | 10,010,000 | 1.00 | 0.69 | -0.64 | 1.65 |
17 | 10,301 working face of 3 − 1 coal seam in Hongqinghe Coal Mine, Inner Mongolia | 18,060,000 | 25,220,000 | 22,360,000 | 2.64 | 2.30 | -0.94 | 3.59 |
18 | Ventilation Liaison Lane, Auxiliary Yunping Lane, Hongqingliang 3 − 1 Coal Seam, Ordos | 12,680,000 | 29,660,000 | 7,630,000 | 3.76 | 4.66 | -0.94 | 4.71 |
19 | 16 Coal Seam of Dongrong No.1 Coal Mine, Heilongjiang Province | 21,420,000 | 8,200,000 | 9,250,000 | 3.74 | 3.24 | -0.97 | 4.71 |
20 | 18 Coal Seam of Dongrong No.1 Coal Mine, Heilongjiang Province | 21,420,000 | 8,200,000 | 9,250,000 | 4.11 | 2.42 | -0.89 | 5.00 |
21 | Coal Seam 20, Dongrong No.1 Coal Mine, Heilongjiang Province | 21,420,000 | 8,200,000 | 9,250,000 | 3.58 | 3.06 | -0.96 | 4.54 |
22 | 22 Coal Seam of Dongrong No.1 Coal Mine, Heilongjiang Province | 43,110,000 | 16,510,000 | 18,620,000 | 1.67 | 0.80 | -0.90 | 2.57 |
