ABSTRACT

The finite element method with the random field theory, the Random Finite Element Method (RFEM), has been adopted to evaluate the mechanical behavior of the cement-treated soil ground in which strength varies spatially. The spatial variability of the strength can be appropriately considered in the RFEM analysis. However, the model uncertainty might be included in the analysis result. This paper presents the evaluation of the model uncertainty in the RFEM analysis for an overall strength of a cement-treated soil column. The unconfined compression tests of a full-scale cement-treated soil column are simulated by the RFEM analysis. The statistical parameters of the analyzed overall strength are compared to those obtained from the full-scale test results. The comparison provides model correction factors representing the model uncertainty.