水科学进展2017，Vol.28Issue(3)：382-389,8.DOI:10.14042/j.cnki.32.1309.2017.03.008
基于二次重现期的城市两级排涝标准衔接的设计暴雨
Design storm for mixed level-1 and level-2 urban drainagestandards based on the secondary return period
摘要
Abstract
In this paper, we estimated the design storm for mixed level-1 and level-2 urban drain standards according to data of the combination of 1-hour rainstorm and 6-hour rainstorm (R1h-R6h), the combination of 1-hour rainstorm and 12-hour rainstorm(R1h-R12h), and the combination of 1-hour rainstorm and 24-hour rainstorm(R1h-R24h) in Zhuhai city between 1984 and 2015.First, the models of joint probability distribution about different combinations were built using the Archimedean extreme value Copula and the Kendall distribution function.Then, the occurrence probability, "OR" return period, "AND" return period and the secondary return period for each combination were analyzed, and the design storms for each combination were estimated by the method with the maximum occurrence probability.The results are as follows: the cumulative frequency corresponding the secondary return period more accurately represents the risk probabilities of rainstorms of different combinations with specific design frequency;the estimated design storm quantiles of the secondary return period based on return periods with 2-year, 3-year, 5-year, 10-year, 20-year, 50-year and 100-year are between the design storm quantiles of the "OR" return period and these of the "AND" return period, and less than these of the marginal distribution return period, respectively.Compared with the case of design storm quantiles of the marginal distribution return period, the relative error of the R1h-R6h is between 3.1% and 7.1%;that of the combination of R1h-R12h is between 3.3% and 9.3%;that of R1h-R24h is between 3.95% and 12.0%.These provide optimization criterion and guide for the risk management of waterlogging project and the design of drainage pipe, respectively.关键词
设计暴雨/极值Copula/二次重现期/城市排涝标准/珠海市Key words
design storm/extreme value Copula/secondary return periods/urban drainage standards/Zhuhai city分类
建筑与水利引用本文复制引用
陈子燊,高时友,李鸿皓..基于二次重现期的城市两级排涝标准衔接的设计暴雨[J].水科学进展,2017,28(3):382-389,8.基金项目
国家自然科学基金资助项目(41371498)The study is financially supported by the National Natural Science Foundation of China (No.41371498). （41371498）
