Penetrating speed vp/(mm·min−1) | Rotary speed n/(r·min−1) | Weight on bit Fw/N | Rotary torque T/(N·m) | ||||
---|---|---|---|---|---|---|---|
Experiments | Average | Model | Experiments | Average | Model | ||
85 | 60 | 61.6‒83.6 | 72.1 | 71.3 | 1.13‒1.45 | 1.31 | 1.05 |
85 | 80 | 32.0‒41.9 | 37.7 | 39.0 | 0.70‒0.88 | 0.78 | 0.54 |
85 | 100 | 21.2‒28.2 | 25.6 | 24.2 | 0.52‒0.59 | 0.55 | 0.33 |
85 | 120 | 15.8‒22.2 | 18.4 | 15.8 | 0.33‒0.43 | 0.37 | 0.21 |
85 | 140 | 9.2‒17.5 | 12.7 | 11.6 | 0.22‒0.29 | 0.26 | 0.15 |
85 | 200 | 6.6‒10.0 | 7.8 | 6.7 | 0.08‒0.16 | 0.12 | 0.09 |
10 | 10 | 32.5‒42.0 | 37 | 39.0 | 0.61‒0.8 | 0.69 | 0.54 |
60 | 60 | 36.2‒41.9 | 40 | 39.0 | 0.68‒0.78 | 0.76 | 0.54 |
70 | 70 | 34.3‒49.5 | 39 | 39.0 | 0.62‒0.80 | 0.73 | 0.54 |
200 | 200 | 32.1‒41.5 | 38 | 39.0 | 0.68‒0.72 | 0.70 | 0.54 |