Estimation of deformation modulus of rock masses based on Bayesian model selection and Bayesian updating approach

The deformation modulus is one of the most important parameters to model the behavior of rock masses, but its direct measurement by in situ tests is costly, time-consuming and sometimes infeasible. For that reason, many models have been proposed to estimate the deformation moduli of rock masses based on geotechnical classification indices, such as the Rock Mass Rating (RMR), the Geological Strength Index (GSI), the Tunneling Quality Index (Q),...