RELIABILITY ANALYSIS OF M5-GP PREDICTION MODELS FOR UPLIFT CAPACITY OF SUCTION CAISSONS

Different models for predicting the uplift capacity are available in the technical literature. The recommended models for uplift capacity prediction do not account for theinput uncertainties affecting the results. Generally, uncertainty in the inputs, is effective on the reliability of the system responses. Suction caisson is among the widely used engineering systems that its uplift capacity is influenced by uncertainties pacity is influenced by uncertainties.To improve the reliability of the designs, the input uncertainties need to be considered directly [1]. For this purpose, various approaches have been used for analyzingthe engineering systems ranging from engineering judgments to the complicated statistical and intelligent methods. The fuzzy sets theory can be considered as the mostgeneral method to be used for uncertainty analysis in engineering [2]. Examples of successful civil engineering studies that utilized the fuzzy sets theory include the uncertainty analyses in water pipeline networks [3, 4], structural engineering [5, 6] and geotechnical engineering [7].