A three-parameter flood damage function, part Ⅰ. Theory and development

被引：0
|
作者：
Li C. [1 ]
Cheng X. [2 ]
Wang Y. [2 ]
Fu D. [3 ]
机构：
[1] School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan
[2] China Institute of Water Resources and Hydropower Research, Beijing
[3] Ningxia Capital Sponge City Construction & Development Co., LTD, Guyuan
来源：
Shuili Xuebao/Journal of Hydraulic Engineering | 2020年 / 51卷 / 03期
关键词：
Driving mechanism; Evolution trend; Flood damage-return period function; Flood disaster risk; S-shaped curve;
D O I：
10.13243/j.cnki.slxb.20190824
中图分类号：
学科分类号：
摘要：
In order to describe the evolution trend of flood risk under the background of social economic growth, rapid urbanization, and improvement of flood control standards, the driving mechanism of flood disaster risk evolution is discussed on the basis of the flood risk theory, chain-reaction and mutability of urban flood damage. The flood damage-return period function is analyzed as S-shaped curve with three parameters. critical damage Dc, critical return period Rc and regional integrated vulnerability index k, respectively. The function can be used as a simple and fast method for flood risk assessment, prediction, and flood risk reduction benefits assessment. The turning points of the curve provide scientific basis for disaster prevention and reduction decision-making. © 2020, China Water Power Press. All right reserved.
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页码：349 / 357
页数：8
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