The Effect of the Selection of Three-Dimensional Random Numerical Soil Models on Strip Foundation Settlements

This paper delivers a probabilistic attempt to prove that the selection of random three-dimensional finite element (FE) model subsoil affects computed settlements. Parametric analysis soil block is conducted, assuming variable Young’s modulus in particular elements. The represented by field or different-sized sets variables; both cases, same truncated Gaussian assumed. Mean values and standard deviations settlement are estimated Monte Carlo simulation procedure. With regard adopted FE model, mean do not vary significantly, but strongly. Similarities also appear diagrams correlation length versus deviation displaying total number variables deviation. Thus, relevant single models represent approach well with parameter estimation. remark verified upon hypothetical strip foundation. Following preliminary observations, various geotechnical analyses may be supported, e.g., continuous footing design, slope stability analysis, foundation reliability assessment.