Factor C3 for partially buried pipes

Symbol
$C_{b3}$
Formulae
$\frac{2 C_{g1}}{\beta_{b} \sqrt{C_{g2}^{2} - 1} \left(- \beta_{b} + \pi\right)}$Morud & Simonsen $C_{g2} > 1$
$\frac{C_{g1}}{\beta_{b} \sqrt{C_{g2}^{2} - 1} \left(- \beta_{b} + \pi\right)}$Morud & Simonsen $C_{g2} ≤ 1$