基于流域的沿海山地城市防洪排涝规划方案设计  

Design of Flood Control and Drainage Planning Scheme for Coastal Mountainous Cities Based on Watershed

作　　者：杨海燕[1] 黄明阳 周广宇[2] 孙广东 明瑞涛 YANG Hai‑yan;HUANG Ming‑yang;ZHOU Guang‑yu;SUN Guang‑dong;MING Rui‑tao(Beijing Climate Change Response Research and Education Center,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;China Academy of Urban Planning&Design,Beijing 100044,China;China Aerospace Academy of Systems Science and Engineering,Beijing 100048,China)

机构地区：[1]北京建筑大学北京应对气候变化研究和人才培养基地,北京100044 [2]中国城市规划设计研究院,北京100044 [3]中国航天系统科学与工程研究院,北京100048

出　　处：《中国给水排水》2023年第5期133-138,共6页China Water & Wastewater

基　　金：国家重点研发计划项目(2021YFC3001400);北京建筑大学市属高校基本科研业务费专项资金资助项目(X20066)。

摘　　要：针对我国内涝灾害频发、防洪排涝规划思路缺乏系统性的现状,总结了从整体到局部3个层次的防洪排涝体系,并运用SWMM模型分析了多种降雨-洪水-潮水遭遇情况下,X省S市Y区现状水系及防洪排涝规划方案的排水能力,验证了该体系的科学合理性。通过65次模拟及方案调整,确定了Y区的最佳水系规模,并预留6座泵站。结果表明,在20年一遇最不利24 h降雨遭遇50年一遇洪水及50年一遇潮水条件下,Y区共形成3506×10^(4) m^(3)的径流量,其中2402×10^(4) m^(3)的径流量通过水系排至外江外海,193×10^(4) m^(3)径流量通过泵站排至外江,911×10^(4) m^(3)径流量被河流、滞涝区消纳,Y区内涝风险得以消除。In view of the frequent occurrence of waterlogging disasters and the lack of systematic planning for flood control and drainage in China,the three levels of flood control and drainage system from the whole to the local were summarized,the drainage capacity of Y district,S city,X province and its current drainage system and flood control and drainage planning scheme were analyzed under a variety of rain‑flood‑tide scenarios by using SWMM model,and the scientific rationality of the system was verified.Through 65 simulations and scheme adjustments,the optimal drainage scale of Y district was determined,and 6 pumping stations were reserved.When the most unfavorable 24‑hour rainfall with 20‑year return period encountered the 50‑year return period flood and 50‑year return period tide,the runoff with a total volume of 3506×10^(4) m^(3)was formed in Y district,of which the runoff with volume of 2402×10^(4) m^(3)was discharged to the outer river through the water system,the runoff with volume of 193×10^(4) m^(3)was discharged to the outer river through the pumping station,and the runoff with volume of 911×10^(4) m^(3)was absorbed by rivers and detention areas.Therefore,the risk of waterlogging in Y district was eliminated.

关 键 词：防洪排涝规划 SWMM 沿海山地城市 大排水系统 径流量 

分 类 号：TU992[建筑科学—市政工程]