排水和排涝设计暴雨重现期的异同  

Differences and similarities of design rainstorm's return period between drainage and water logging

作　　者：张泽慧[1] 丁晶[1] 覃光华[1,2] 姚瑞虎 

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《浙江大学学报（工学版）》2016年第11期2158-2163,共6页Journal of Zhejiang University：Engineering Science

基　　金：国家"973"重点基础研究发展计划资助项目(2013CB036401)

摘　　要：针对市政系统和水利系统中设计暴雨重现期不一致的情况,提出基于年多个样法和年最大值法的次风险理念和年风险理念.指出市政系统重现期所表征的风险除特大值外还包括次大值等所引起的风险,而水利系统重现期所表征的风险仅为年最大值主宰的风险.以广州市暴雨资料为例,分析2种重现期的大小关系.研究表明,市政系统重现期小于或等于水利系统重现期的数量关系,2种重现期化异求同的关键在于统一风险理念和选样时采用年最大值法.The concepts of time-risk and annual-risk were respectively presented based on the annual multi-samples method and the annual maximum sample method aiming at the inconsistent of return periods about design rainstorm in the municipal and water conservancy systems. The risk of municipal system was caused by the annual biggest flood or the second flood or others, but the risk of water conservancy systems was caused by the annual biggest flood. Taking the storm data in Guangzhou city as an example, the relationship between the two kinds return period was deeply analyzed. Results show that the return period of mu-nicipal system is not more than water conservancy system. The key to change the two return periods into accordance is unifying the two risk concepts and adopting the annual maximum sample method.

关 键 词：排水和排涝 设计暴雨标准 年多个样法 年最大值法 

分 类 号：TV122[水利工程—水文学及水资源]