河川計画・管理

[II-166] Study on Overflow Discharge of Retarding Basin Used with Hydraulic Model Experiment and Two Dimensional Unsteady Flow Simulation

〇Hiroki Yoshitake¹, Nao Katayama¹, Kenichirou Ogawa¹, Yu Morishita¹, Yuji Okamoto², Chizuko Yokoyama² (1.Pacific Consultants, 2.Mie Kasen KokudouJimusyo)

Keywords:retarding basin, overflow discharge, hydraulic model experiment, two dimensional unsteady flow simulation

Evaluate the reproducibility of two-dimensional unsteady flow analysis of river channels and overflows obtained by hydraulic model experiments for the river Kumozu River, which is planned to be constructed as a retarding basin in the river improvement plan The purpose of this study was to consider the possibilities and issues of developing a flood basin plan in consideration of flood risk reduction. If the flood scale is about the expected external force, it is possible to accurately understand the effects of the difference in rainfall patterns and the modification of the overflow levee on the flood control function.