Eleftherios-Stamatios, Telis, Besseris, George J., Stergiou, Constantinos and Limbachiya, Mukesh (2016) Cost and safety optimisation in 'Berlin' type retaining walls. International Journal of Structural Engineering, 7(4), pp. 355-366. ISSN (print) 1758-7328
Abstract
Studies for earth retaining wall structures provide engineers with the values for the response of design characteristics which represents the stability and the required budget for the completion of a project. Fundamental theories guide engineers to combinations of design variables values. These values have a direct relation to the responses of the earth retaining wall structure. The requirement of this analysis is that there is no proven technique which ensures the best combination of design variables for the simultaneous optimisation of safety factor and overall cost of a project. This paper presents an integration of the desirability analysis which provides the multivariate optimisation with the performance of few experimental runs based on statistical tools and finite elements methodology. The methodology provides a 24% higher safety factor and 50% lower overall cost comparing to the results of an experienced foundation engineering company.
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