水科学进展2018，Vol.29Issue(1)：20-30,11.DOI:10.14042/j.cnki.32.1309.2018.01.003
基于改进填洼模型的城市洪涝灾害计算方法
Estimation of urban flooding processes based on enhanced inundation model
摘要
Abstract
Urban hydrological models are widely used in urban water management.Compared with a hydrological-hydrodynamic model,urban hydrological models always show some limitations for estimating inundated area rapidly and therefore need to be enhanced.In this research,an enhanced inundation model which considers the feedback of water from lower depression element was developed and coupled to the SWMM model to simulate inundated areas in the Tiantang River basin in Beijing.A comparison with the results from a 2-D hydrodynamics model obtained in previous study showed that the enhanced model can quickly and accurately estimate the depth of inundation.The design standard of flood discharge capacity in the Tiantang River basin is lower than 20-year return period,and high-flood-risk areas are concentrated in downstream sections of the river and around the confluence of Tianting River and the Tianying and Yongbao channels.Flood risk in these downstream areas is also likely to increase with the development of new airports in the Tiantang River basin.This research proposes a new method to estimate urban inundation.关键词
城市水文/填洼模型/水文模型/天堂河Key words
urban hydrology/inundation model/hydrological model/Tiantang River分类
天文与地球科学引用本文复制引用
赵刚,徐宗学,庞博,姜其贵,孟德娟..基于改进填洼模型的城市洪涝灾害计算方法[J].水科学进展,2018,29(1):20-30,11.基金项目
北京市自然科学基金重点项目(8141003) （8141003）
国家自然科学基金资助项目(51309009)The study is financially supported by the Key Project of Beijing Natural Science Foundation (No.8141003) and the National Natural Science Foundation of China (No.51309009). （51309009）
