Table 1 Calculation results of stripping ratio in each section.
Classification | Calculation section | Volume of rock (m3) | Coal weight (t) | Sectional stripping ratio (m3/t) | Cumulative stripping ratio (m3/t) |
|---|---|---|---|---|---|
Type-B | 1453–1544 | 110,600,000 | 28,921,800 | 3.82 | 4.05 |
1544–1644 | 116,980,000 | 32,121,000 | 3.64 | 3.99 | |
1644–1744 | 75,900,000 | 20,046,600 | 3.79 | 3.98 | |
1744–1844 | 150,680,000 | 43,942,000 | 3.43 | 3.90 | |
1844–1944 | 101,080,000 | 33,798,000 | 2.99 | 3.81 | |
1944–2004 | 57,840,000 | 20,253,000 | 2.86 | 3.76 | |
Type-A | 2004–2044 | 32,480,400 | 19,903,668 | 1.63 | 3.65 |
2044–2084 | 33,990,400 | 16,936,668 | 2.01 | 3.58 | |
2084–2124 | 35,730,400 | 13,556,868 | 2.64 | 3.55 | |
2124–2164 | 37,106,080 | 10,250,753 | 3.62 | 3.55 | |
2164–2204 | 38,828,960 | 7,015,846 | 5.53 | 3.58 | |
2204–2244 | 42,540,000 | 2,639,985 | 16.11 | 3.66 |
