Research Article
Research on Inpit Dumping Height during Tracing Mining Period between Two Adjacent Surface Coal Mines
Table 2
Relationship between the dumping height and the total cost.
| Dumping height (m) | Transportation cost (million yuan) | Secondary stripping cost (million yuan) | Total cost (million yuan) |
| 0 | 571.50 | 0 | 571.50 | 15 | 500.27 | 2.05 | 502.32 | 30 | 431.98 | 8.22 | 440.20 | 45 | 367.03 | 18.49 | 385.52 | 60 | 305.83 | 32.87 | 338.70 | 75 | 248.78 | 51.36 | 300.14 | 90 | 196.31 | 73.96 | 270.27 | 105 | 148.86 | 100.66 | 249.52 | 120 | 106.83 | 131.48 | 238.31 | 135 | 70.65 | 166.40 | 237.05 | 150 | 40.74 | 205.43 | 246.17 | 165 | 17.53 | 248.57 | 266.10 | 180 | 0 | 301.59 | 301.59 |
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