Research Article
Theoretical Study and Experiment Validation on Drilling Cutting Weight during the Whole Process of Drilling
Table 2
Statistics of drilling cutting weight in Xinglongzhuang Coal Mine (kg/m).
| | Monitoring point | Distance ahead of working face (m) | | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| | 1 | 2.2 | 2.5 | 2.7 | 2.8 | 3.0 | 3.1 | 2.5 | 3.6 | 2.8 | 3.9 | 3.5 | 4.1 | 4.0 | | 2 | 1.9 | 2.1 | 1.8 | 2.5 | 2.6 | 2.4 | 2.8 | 2.0 | 2.4 | 2.7 | 3.2 | 3.0 | 2.7 | | 3 | 2.2 | 2.0 | 1.8 | 2.6 | 1.9 | 2.3 | 2.9 | 2.4 | 2.6 | 2.5 | 2.0 | 2.3 | 2.8 | | 4 | 1.8 | 1.8 | 2.3 | 2.1 | 2.2 | 2.4 | 2.5 | 2.4 | 3.2 | 2.4 | 2.8 | 3.3 | 3.4 | | 5 | 2.0 | 1.9 | 2.3 | 2.3 | 2.5 | 2.7 | 2.3 | 3.0 | 2.9 | 2.6 | 2.7 | 3.4 | 2.9 | | 6 | 2.1 | 1.8 | 2.0 | 2.3 | 2.3 | 2.4 | 2.7 | 2.1 | 2.8 | 2.6 | 2.0 | 2.0 | 2.7 | | 7 | 2.0 | 1.9 | 2.5 | 2.1 | 2.3 | 2.6 | 2.7 | 2.1 | 2.5 | 2.7 | 2.2 | 2.5 | 2.5 | | 8 | 1.8 | 1.8 | 2.1 | 2.4 | 2.3 | 2.0 | 1.9 | 2.4 | 2.2 | 1.8 | 2.4 | 2.0 | 2.4 | | 9 | 2.7 | 2.6 | 2.8 | 2.5 | 2.4 | 3.2 | 3.6 | 3.7 | 4.1 | 4.3 | 4.5 | 3.2 | 3.8 | | 10 | 2.3 | 2.0 | 1.8 | 1.8 | 2.7 | 2.6 | 2.3 | 2.2 | 3.5 | 3.0 | 3.3 | 3.0 | 2.7 | | 11 | 1.9 | 2.4 | 2.5 | 2.0 | 2.3 | 2.5 | 2.3 | 2.0 | 2.8 | 2.5 | 2.1 | 2.8 | 3.1 | | 12 | 1.7 | 2.0 | 1.8 | 2.2 | 2.5 | 2.0 | 1.8 | 2.3 | 2.2 | 2.4 | 2.5 | 2.3 | 2.6 | | 13 | 1.8 | 2.4 | 2.8 | 2.0 | 2.7 | 2.9 | 3.0 | 2.6 | 3.5 | 2.9 | 3.1 | 3.4 | 3.1 | | 14 | 2.0 | 1.8 | 2.4 | 2.1 | 2.6 | 2.2 | 1.9 | 2.3 | 2.7 | 2.4 | 2.5 | 2.5 | 3.0 | | 15 | 1.7 | 1.9 | 1.9 | 2.3 | 2.0 | 2.2 | 2.5 | 2.1 | 2.7 | 2.3 | 2.1 | 2.1 | 2.5 | | 16 | 2.0 | 2.6 | 2.3 | 1.9 | 2.4 | 2.5 | 2.2 | 2.6 | 2.1 | 2.7 | 2.8 | 2.5 | 2.7 | | 17 | 1.7 | 1.9 | 2.3 | 2.1 | 2.0 | 2.4 | 2.2 | 2.5 | 2.7 | 2.7 | 2.9 | 3.1 | 3.3 | | 18 | 1.5 | 1.9 | 2.1 | 2.0 | 1.8 | 2.3 | 1.9 | 2.1 | 2.3 | 2.5 | 2.4 | 2.4 | 2.6 | | 19 | 1.6 | 1.6 | 1.9 | 2.1 | 2.1 | 2.0 | 2.3 | 1.9 | 2.4 | 2.1 | 2.3 | 2.1 | 2.0 | | 20 | 1.9 | 2.3 | 2.1 | 2.0 | 2.1 | 2.1 | 2.3 | 2.4 | 2.1 | 1.9 | 2.3 | 2.4 | 2.1 | | Average | 1.940 | 2.060 | 2.210 | 2.205 | 2.335 | 2.440 | 2.430 | 2.435 | 2.725 | 2.645 | 2.680 | 2.720 | 2.845 |
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