Research Article
Failure Mechanism of the Qianjiangping Slope in Three Gorges Reservoir Area, China
Table 1
Physical and mechanical parameters of material.
| | Material | Unit weight (kN/m3) | Void ratio | Saturated unit weight (kN/m3) | Modulus of elasticity (MPa) | Poisson’s ratio | Friction angle (°) | Cohesion (kPa) | Permeability coefficient (m/s) | | A | B | A | B | A | B |
| | Highly weathered layer | 23.5 | 0.54 | 24.5 | 500 | 250 | 0.38 | 30 | 28 | 100 | 50 | 5 × 10−5 | | Slightly weathered layer | 24.5 | 0.33 | 25.5 | 5000 | 2500 | 0.32 | 35 | 32 | 500 | 250 | 1 × 10−5 | | Gently dipping discontinuous structural plane | 23.5 | 0.55 | 24.5 | 1000 | 500 | 0.38 | 32 | 28 | 200 | 95 | 5 × 10−5 | | Interlayer staggered zone | 16.3 | 0.43 | 23.2 | 50 | 25 | 0.40 | 12 | 10 | 18 | 15 | 4 × 10−4 | | Bedrock | 25.0 | 0.11 | 26.0 | 20000 | 0.26 | 40 | 4000 | 3 × 10−11 |
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