Research Article
Stability Analysis of Jointed Rock Slope by Strength Reduction Technique considering Ubiquitous Joint Model
Table 2
Geotechnical parameters for strength reduction procedure.
| | Type | Deformation modulus E (GPa) | Unit weight γ (kN/m³) | Poisson’s ratio V | Cohesion cr (kPa) | Friction angle φr (°) |
| | Metamorphism siltstone in heavily unloading zone | 1.8 | 26.0 | 0.37 | 113 | 26.6 | | Metamorphism siltstone in slightly unloading zone | 4.5 | 26.5 | 0.32 | 600 | 36.9 | | Thick layered metamorphism siltstone | 8.0 | 26.8 | 0.27 | 1250 | 47.5 | | f1 | 0.45 | 25 | 0.32 | 25 | 12.7 | | f13-04 | 0.45 | 25 | 0.32 | 113 | 23.2 | | The fourth set of joints | — | — | — | 125 | 27.7 |
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“—” denote that the joint does not possess the property.
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