Construction of storm runoff and inundation model considering the process of building inundation

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420530
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: Amaguchi Hideo 首都大学東京, 都市環境科学研究科, 助教 (40326012)
• Co-Investigator(Kenkyū-buntansha): KAWAMURA akira 首都大学東京, 都市環境科学研究科, 教授 (10177735) ; NAKAGAWA naoko 立教大学, 理学部, 准教授 (70452034)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 建物浸水 / 都市水文 / 地理情報システム / 分布型洪水流出解析モデル / 浸水解析 / 地物データGIS / Tokyo Storm Runoff model

Outline of Final Research Achievements

In this study, a numerical simulation model for rainfall-runoff and flood inundation was developed; this model considers the inundation process of individual building. The model was built and evaluated for the upper Kanda catchment, Tokyo Metropolis, Japan. In the model, the parameters for the foundation height and floor height of each building and the opening ratio below and above the 1st floor were set for individual buildings based on their structure and purpose. The model was applied to simulate one major storm event. It could reproduce differences in the inundation depth of individual buildings reflecting the additional input parameters. The use of the model to evaluate the inundate condition for specific properties of the building was also demonstrated.

Free Research Field

水文学