以海口市排涝工程为例, 根据设计流量分析法, 探讨了海口市水利排涝和市政排水重现期的对应关系。结果 表明, 市政排水重现期1 年对应水利排涝重现期10 年; 市政排水重现期2 年对应水利排涝重现期15~ 20 年; 市政 排水重现期3 年对应水利排涝重现期20~ 28 年; 市政排水重现期5 年对应水利排涝重现期30~ 40 年; 市政排水重 现期10 年对应水利排涝重现期45~ 70 年。据此, 结合已有成果, 最终得出了适用于其它地区水利排涝与市政排水 重现期的多项式转换模型。

The transformation relationship o f r etur n perio d bet ween the municipal drainag e system and water lo gg ed dr ainage sys2 tem w as inv est igated using t he desig n flow analysis method accor ding to the drainag e project in H aikou City. The r esults show ed that the municipal2dr ainage return perio d of 1 year cor responds to the water2dr ainage retur n perio d of 10 y ear s, munici2 pal2dra inag e retur n period of 2 y ears to w ater2drainag e r eturn per iod o f 15 ~ 20 y ears, municipal2drainag e r eturn per iod of 3 years to water2dr ainage r etur n perio d of 20~ 28 y ea rs, municipal2drainag e r et ur n per io d of 5 years to water2dr ainage return per i2 o d o f 30~ 40 years, and municipal2dr ainage return period of 10 year s to wat er2drainage return per iod of 45~ 70 year s, r espec2 tively. Based o n the r esear ch r esult s obtained prev iously and in this paper , the g eneral tr ansfo rmatio n mo del o f r eturn period be2 tw een municipal drainag e system and w aterlogg ed dr ainag e system w as determined.

国家自然科学基金创新研究群体科学基金资助项目( 51321065)