南京市六合区市政排水与水利排涝设计暴雨重现期衔接关系

摘要

为了获得年多个选样法排水暴雨重现期和年最大值法排涝暴雨重现期的转换关系,依据收集到南京市六合区雨量站近20年降雨资料,分析了六合区排水设计和排涝设计暴雨重现期的衔接关系,结果显示：当排水设计暴雨重现期为1 a时,排涝设计暴雨重现期为5 a～12 a;当排水设计暴雨重现期为2 a时,排涝设计暴雨重现期为5 a～28 a;当排水设计暴雨重现期为3 a时,排涝设计暴雨重现期为8 a～31 a。%Taking the rainfall data from last 20 years in Liuhe District of Nanjing City as the research object,the connection relationship of the return period of the design rainstorm between different sampling methods has been established and could be used to decide the suitable design standard in urban drainage plan.The study results show that when the return period of municipal drainage is one year,the corresponding return period of waterlogged drainage would be 5~12 years;When the return period of municipal drainage is two years,the corresponding return period of waterlogged drainage would be 5~28 years;When the return period of municipal drainage is three years,the corresponding return period of waterlogged drainage would be 8~31 years.