日本地球惑星科学連合2019年大会

講演情報

[E] Eveningポスター発表

セッション記号 A (大気水圏科学) » A-GE 地質環境・土壌環境

[A-GE29] エネルギ・環境・水ネクサスと持続的発展

2019年5月30日(木) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:張 銘(産業技術総合研究所地質調査総合センター地圏資源環境研究部門)、川本 健(埼玉大学大学院理工学研究科)、Jet-Chau Wen(National Yunlin University of Science and Technology)、? 永紅(天津師範大学)

[AGE29-P04] Assessing the Urban Storm-Flood Disaster of Zhengzhou city Based on Fuzzy Methods

*Caihong Hu1Xian Du1Ying Zhang1SHAN E HYDER ALIAS TAHIR1Shengqi Jian1 (1.School of water conservancy and environment, Zhengzhou University, Zhengzhou City, Henan Province, P.R. China, 450001)

キーワード:waterlogging warning grade, DPSIR model, evaluation index, fuzzy comprehensive evaluation method

The frequency of urban waterlogging floods increased year by year with the accelerating process of urbanization in China. It is very important for us to study the urban waterlogging warning and emergency management. Four flood evaluation indexes, which are the 3h cumulative rainfall, submergence and waterlogging disaster degree and comprehensive management efficiency, are selected as the accessing indexes based on the DPSIR (Driving forces, Pressure, State, Impact and Responses model) model. Fuzzy comprehensive evaluation method is applied to evaluate the urban disaster degree based on the index weight determined by the analytic hierarchy process (AHP). Zhengzhou city, which located in the middle of China, is taken as an example for our study. Based on the SWMM model, this paper divides the urban area of Zhengzhou into 2200 unit areas. Four grades were divided for disaster degrees. The results show that Zhengzhou city will encounter different grades of waterlogging disasters with different precipitation. 469, 708, 1006 and 1057 units area of the city will encounter the second grades for warning when the rain of half a year, one year, two years and five years return period happen. The results show that the method is scientific and reasonable and can be applied to practical work.