Mechanical parameters of rock strata
| Parameter | Value |
|---|---|
| Elastic modulus: MPa | 20 000 |
| Uniaxial compressive strength: MPa | 35 |
| Internal friction angle: ° | 30 |
| Ratio of uniaxial compressive strength to uniaxial tensile strength | 10 |
| Residual strength: % | 0·1 |
| Parameter | Value |
|---|---|
| Elastic modulus: MPa | 20 000 |
| Uniaxial compressive strength: MPa | 35 |
| Internal friction angle: ° | 30 |
| Ratio of uniaxial compressive strength to uniaxial tensile strength | 10 |
| Residual strength: % | 0·1 |
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