Table 2.
Field measured sample datasets for model testing.
| No. | Sample source | Mining depth (m) | Mining height (m) | Lithology type | Working-face length (m) | Coal-seam dip angle (°) | Height of fractured water-conducting zone (m) |
|---|---|---|---|---|---|---|---|
| 1 | No. 1215(3) working face in Zhangji Coal Mine | 520.5 | 3 | 3 | 202 | 2 | 33.365 |
| 2 | No. 1242(1) working face in Gubei Coal Mine | 620 | 3.1 | 4 | 240 | 3.5 | 20.215 |
| 3 | No. 7192 working face in Kongzhuang Coal Mine | 220 | 5.3 | 3 | 120 | 25 | 46.5 |
| 4 | No. S4101 working face in Pingshuo Coal Mine | 360 | 7.69 | 3 | 220 | 3 | 45.125 |
| 5 | No. ZF2801 working face in Xiagou Coal Mine | 347 | 9.9 | 3 | 100 | 2 | 79.255 |
| 6 | No. 5306 working face in Xinglongzhuang Coal Mine | 412 | 6.9 | 3 | 160 | 4 | 38.8 |
| 7 | No. 6206 working face in Wangzhuang Coal Mine | 316 | 5.9 | 3 | 248 | 4.5 | 60.81 |
| 8 | No. I03(2) working face in Laogongyingzi Coal Mine | 240 | 3.5 | 1 | 195 | 7 | 21.675 |
| 9 | No. I03(4) working face in Laogongyingzi Coal Mine | 240 | 3.5 | 1 | 195 | 7 | 17.445 |
| 10 | No. 3202 working face in Wangpo Coal Mine | 474.16 | 5.8 | 3 | 230 | 4 | 65.395 |
| 11 | No. 93101 working face in Nantun Coal Mine | 541.5 | 5.28 | 3 | 175 | 6.5 | 49.25 |
| 12 | No. 1301 working face in Jisan Coal Mine | 480 | 6.3 | 3 | 170 | 4 | 46.13 |
| 13 | No. 1305 working face in Dongtan Coal Mine | 600 | 8.78 | 3 | 223.35 | 6 | 54.08 |
| 14 | No. 2308 working face in Xinglongzhuang Coal Mine | 332.85 | 7.15 | 3 | 160 | 5 | 16.115 |
| 15 | No. 2306 working face in Xinglongzhuang Coal Mine | 319.2 | 8.2 | 3 | 160 | 7.5 | 27.84 |
| 16 | No. 2302 working face in Xinglongzhuang Coal Mine | 278.15 | 8.7 | 3 | 170 | 8 | 28.56 |
| 17 | No. 2300 working face in Xinglongzhuang Coal Mine | 282 | 8.55 | 3 | 140 | 5 | 25.255 |
| 18 | No. 23S2 working face in Xinglongzhuang Coal Mine | 258.55 | 8.45 | 3 | 175 | 3 | 20.85 |
| 19 | No. 2303 working face in Xinglongzhuang Coal Mine | 286.45 | 7.8 | 3 | 150 | 8 | 35.9 |
| 20 | No. 1314 working face in Baodian Coal Mine | 350 | 8.5 | 3 | 169 | 6.5 | 55.255 |
| 21 | No. 2605 working face in Yangcun Coal Mine | 187.5 | 1.2 | 3 | 300 | 10 | 10.41 |
| 22 | No. 63110 working face in Nantun Coal Mine | 368.05 | 5.77 | 3 | 125 | 6 | 48.35 |
| 23 | No. 2186 working face in Donghuantuo Coal Mine | 420 | 3.4 | 3 | 70 | 23 | 56.8 |
| 24 | Fangezhuang Coal Mine | 173 | 1.9 | 4 | 70 | 20 | 25.3 |
| 25 | No. 1672 working face in Qianjiaying Coal Mine | 446 | 3.8 | 4 | 143 | 17 | 40 |