摘要
在气候变化与城市化的双重影响下,城市暴雨时空变异性显著,城市内涝频发,分析暴雨时空分布特性,推求分区设计暴雨雨型对城市精细化防洪排涝工程规划有重要意义。以武汉市为研究对象,以长江为界将武汉市分为南北两区,以东湖站和汉口站为代表站,选取芝加哥雨型法、Pilgrim&Cordery法、概化累积雨量法和同频率分析法推求武汉市分区设计暴雨雨型,同时分析两站暴雨特征,对比判断分区暴雨差异和各雨型的合理性。最终得到武汉市两分区4种方法的24小时长历时暴雨过程,并就雨峰位置和雨峰雨量比例进行了分区雨型的对比。
Under the dual influence of climate change and urbanization,urban rainstorm shows great spatial and temporal variability,leading to the frequent extreme rainstorm and the resultant waterlogging problem.Apparently,it is significant to identity the spatial and temporal distribution characteristics of rainstorm and deduce the regional design storm for urban flood control and drainage planning.In this research,Wuhan city was selected as study area and was divided into north and south regions by Yangtze river,with Hankou hydrological station and East Lake hydrological station as their representative stations.Keifer&Chu method,Pilgrim&Cordery method,Generalized cumulative rainfall method and Co-frequency analysis method were chosen to deduce the regional design storm.Finally,four rainfall patterns were obtained and compared with the observed rainfall data.
作者
郭舟
张翔
赵烨
刘洁
GUO Zhou;ZHANG Xiang;ZHAO Ye;LIU Jie(Hubei Key Laboratory of Water System Science for Sponge City Construction(Wuhan University),Wuhan 430072,China;School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China;School of Architecture and Civil Engineering,Chengdu University,Chengdu 610106,China)
出处
《给水排水》
CSCD
北大核心
2022年第10期78-83,共6页
Water & Wastewater Engineering
基金
湖北省重点研发计划项目(2021BCA128)
国家自然科学基金项目(52009092,41890823)。
关键词
城市暴雨
暴雨时空分布特征
分区设计雨型
Urban rainstorm
Spatial and temporal distribution characteristics of rainstorm
Regional design storm
