HYDRAULIC BOUNDARY CONDITIONS IN THE NETHERLANDS, AT PRESENT AND IN FUTURE

摘要

In the Netherlands a five-yearly safety assessment of the flood defences is performed. The Ministry of Transport, Public Works and Water Management publishes each five years the hydraulic boundary conditions, the water levels and waves that are to be used in the safety assessment. They have been determined using statistical, physical and probabilistic models. The hydraulic boundary conditions represent the current situation. In case the safety assessment shows the flood defence to be insufficient, strengthening is one of the possible measures. For an economic optimal design information about future hydraulic boundary conditions is needed. At present, in the Netherlands no formal method is available to determine hydraulic boundary conditions for design purposes.