摘要
为了量化海绵措施对城市防洪排涝的影响,以典型城市区域万泉河流域为例,基于InfoWorks ICM构建综合洪涝模型,参考北京市地方标准,开展海绵措施规划与流域现状下垫面下不同重现期设计暴雨多情景对比分析。结果表明:海绵措施能提高雨水管网排水能力,使得高于10 a一遇标准的管长增加7.59%,管段数增加8.98%;同时增强河道行洪能力,在10 a一遇至50 a一遇暴雨重现期下,峰值流量削减19.72%~39.36%,径流总量削减26.45%~37.88%,沿线入清河口最高水位平均下降0.35 m;还能缓解流域内涝积水,在5 a一遇至50 a一遇设计暴雨情景下,最大积水深度减小0.04~0.29 m,积水总面积减少14.89~45.13 hm^2,积水总量减少30 399.97~110 114.24 m^3。
In order to quantify the impact of sponge measures on urban flood and drainage control,this paper took the Wanquan River basin in a typical urban area as an example,constructed an integrated flood model based on InfoWorks ICM and referred to Beijing local standards to carry out the sponge measures planning and the current situation by comparative analysis of different design rainfall return periods.The results show that the sponge measures can improve the drainage capacity of the rainwater pipe networks,which increases the pipe standard higher than 10⁃year return period and increases the pipe length by 7.05%and the pipe section by 8.98%.At the same time,it enhances the flood discharge capacity of the river.During the 10⁃year to 50⁃year return periods,the peak flow rates reduce by 19.72%-39.36%,the total runoff reduces by 26.45%-37.88%and the highest water table along the river into the Qing River reduces by 0.35 m.It can also alleviate the water⁃logging in the basin.From 5⁃year to 50⁃year return periods,the maximum waterlogging depth is decreased by 0.29-0.04 m,the total water⁃logging area decreased by 14.89-45.13 hm^2 and the total waterlogging volume decreased by 30399.97-110114.24 m^3.
作者
李尤
潘兴瑶
邸苏闯
朱永华
刘佳伦
张书函
李永坤
程帅
LI You;PAN Xingyao;DI Suchuang;ZHU Yonghua;LIU Jialun;ZHANG Shuhan;LI Yongkun;CHENG Shuai(Beijing Water Science and Technology Institute,Beijing 100048,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China;University of Chinese Academy of Sciences,Beijing 100049,China;Beijing Engineering Technique Research Centre for Non-Conventional Water Resources Exploration and Utilization and Water Use Efficient,Beijing 100048,China;Beijing East to West Water Diversion Management Office,Beijing 100085,China)
出处
《人民黄河》
CAS
北大核心
2021年第1期53-60,共8页
Yellow River
基金
北京市科技计划项目(Z181100005318003)
国家水体污染控制与治理科技重大专项(2017ZX07103-002,2017ZX07103-007)
北京市自然科学基金资助项目(8184075)
中央高校基本科研业务费项目(2019B74614)
江苏省研究生科研与实践创新计划项目(SJCX19-0124)。
