氾濫確率を基準にした治水システムの建設手順計画とその応用に関する研究

Abstract

The aim of this study is to establish the optimal scheduling of the construction workfor the flood control system consisting of multi-subbasin and multi-reference point.In this study, first, the flood inundation probability is adopted to estimate the change ofreliability of the flood control system in time from the viewpoint of risk management. Second, to lighten the computational burden in optimization, following three steps are introduced, -1) the step to reduce infeasible states by the status-quo conditions, 2) the step to optimizethe scheduling under the condition of single work in each stage, 3) the step to searchthe optimal scheduling including the simultaneous construction of plural units. Last, theseapproaches are applied to a hypothetical flood control system for the verification of thetheory.