治水システムの段階的建設手順に関する研究

Abstract

The aim of this study is to establish the optimal scheduling planning of construction worksfor flood control system.We have defined that the planning objective of construction scheduling is the minimi-zation problem of the accumulated value of flood inundation probability for the total construc-tion stages. First, the site planning of construction projects is formulated considering thewhole planning of the flood control system, such as the flood inundation probability, or thescale and kind of the projects.Second, Dynamic Programming and Branch-and-Bound method are introduced to solvethe multistage decision process under the condition of the annual budget.Third, these construction schedulings are generalized by including the simultaneousexecution of several work and the development of river basin.Last, the approximate method is proposed to obtain the feasible solution for the complexriver basin with the multi-project and multi-sub-basin.These approaches are applied to a real flood control system for the verification of thetheory.