Читать книгу Earthquake Engineering for Concrete Dams - Anil K. Chopra - Страница 48

The preceding theory leading up to Eqs. (A2.10) and (A2.13) is also applicable to modeling of wave refraction in the underlying foundation. Such a derivation was presented even earlier by Hall and Chopra (1982).

The wave‐reflection coefficient, α, at the water–foundation boundary can be computed from Eq. (A2.13), wherein ξ = ρ/ρ_rC_r and ; both C_r and ξ are determined from known values of Young's modulus, E_r, and mass density, ρ_r, for rock.