Research Article
Failure Law and Mechanism of the Rock-Loose Coal Composite Specimen under Combined Loading Rate
Table 1
Relationship between three loading rates in the static range [
24].
| | Sample number | Load magnitude | Control loading rate (mm·min−1) | Actual loading rate (MPa·s−1) | Strain rate (s−1) |
| | CR1 | I | 0.01 | 6.10 × 10−3 | 3.22 × 10−6 | | CR2 | — | — | 5.91 × 10−3 | 3.29 × 10−6 | | CR3 | II | 0.1 | 6.26 × 10−2 | 3.29 × 10−5 | | CR5 | — | — | 6.59 × 10−2 | 3.21 × 10−5 | | CR6 | III | 1 | 7.35 × 10−1 | 3.48 × 10−4 | | CR7 | — | — | 3.93 × 10−1 | 1.62 × 10−4 | | CR8 | IV | 10 | 7.81 × 100 | 3.48 × 10−3 | | CR9 | — | — | 8.02 × 100 | 3.45 × 10−3 |
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