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降雨等水文气象条件是影响城市排水安全的关键因素,研究和分析降雨事件的特征,对于排水系统的设计和运行具有重要的参考价值。在对2001年—2010年上海市降雨事件的雨量、历时、强度、时间间隔进行统计的基础上,分析了各特征参数频率分布特征。针对汛期降雨、超标暴雨以及典型降雨事件,对排水设施的设计和运行提出了建议。
Hydrological and meteorological conditions such as rainfall are the key factors affecting urban drainage safety. Studying and analyzing the characteristics of rainfall events has important reference value for the design and operation of drainage system. Based on the statistics of rainfall, duration, intensity and time interval of rainfall events in Shanghai from 2001 to 2010, the frequency distribution characteristics of each characteristic parameter are analyzed. In view of flood season rainfall, excessive rainstorm and typical rainfall events, the design and operation of drainage facilities are put forward.