Research Article
A Vibration-Isolating Blast Technique with Shock-Reflection Device for Dam Foundation Excavation in Complicated Geological Conditions
Table 4
Material mechanics parameters of rock and concrete in damage model.
| | Material | Density
(kg/m3) | Elasticity
modulus (GPa) | Poisson’s
ratio | Dynamic tensile
strength (MPa) | Fracture toughness
(MN×) | Damage constant λ (Kg/J) | Material constant β |
| | Rock | 2700 | 15.0 | 0.23 | 3.0 | 0.92 | 0.0001 | 0.5 |
| | Concrete | 4107 | 54.3 | 0.18 | 12.8 | 0.9 | 0.0001 | 0.5 |
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