Reliability updating for slope stability of dikes : test cases report

The present report provides two case studies testing and illustrating the application of the reliability updating approach described in the accompanying background report by Schweckendiek and Kanning (2016). The main objective of the current development efforts is to operationalize the reliability updating method for advanced safety assessments regarding the failure mode ’slope instability’, specifically the method using fragility curves. As for the overall project, this involves both (a) development and documentation of the method, and (b) demonstration of the applicability with realistic test cases. The secondary objective of this study is to generate insights to help estimating the potential effect on the reliability estimates for typical Markermeerdijken conditions. For the reasons mentioned above, the intermediate phase of the project has focused exclusively on the Markermeerdijken conditions. For a broader acceptance of the reliability updating approach, more case studies from a wider range of conditions need to be investigated.