降雨強度の増大に適応した既存調整池の放流能力拡大による治水機能向上効果の分析

抄録

It is adaptable to h e avy rain fall that increase s with climate change by improving the flood control capacity of the regulating reservoirs in Tsurumi River basin. The purpose of this study is to analyze the effect of reducing the storage volume at the initial stage of flood and securing the storage capacity at the peak of flood by increasing the orifice diameter of the regulating reservoir s Analysis of the effectiv eness of the countermeasure by the unique model that individually reproduces the large scale regulating reservoirs showed that the peak cut rate o f flood discharge was improved about 12 times (0.8% 9.3%) against the planned scale rainfall under climate c h ange in the Takadabashi upstream area.