Open Access
Table 2
When 
, force coefficient interval distribution.
| Machine type | Test type | ε Distribution probability | Probability increase | δ Distribution probability | Probability increase |
|---|---|---|---|---|---|
| Machine 1 | Loose soil surface | 92.8% | 11.5% | 84.8% | 5.0% |
| Normal soil surface | 92.7% | 13.1% | 92.1% | 12.7% | |
| Hard soil surface | 91.1% | 10.9% | 88.5% | 8.0% | |
| 1M digging | 91.9% | 11.9% | 95.0% | 9.5% | |
| 2M digging | 83.4% | 1.1% | 91.5% | 11.2% | |
| Machine 2 | Hard soil surface | 96.1% | 16.4% | 94.1% | 13.3% |
| 1M digging | 93.7% | 13.3% | 90.5% | 9.9% | |
| 2M digging | 86.8% | 3.0% | 92.5% | 12.1% |
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