摘要
按目前国内的城市规划体制,市政部门负责管道排水规划,水利部门负责河道排涝规划,两者采用的暴雨资料统计方法不同导致了设计标准的差异,所以城市管道排水和河道排涝存在组合设计的问题.组合值不同,安全度也不一样,当设计暴雨取值满足河道排涝设计安全条件时,组合的排水设计标准越高,相应的组合安全性越大,组合的排水设计标准越低,则相应的组合安全性越小,这种组合设计的安全性可以用风险率表示.为此,构建了管道排水和河道排涝组合风险计算模型,并依据其组合风险率提出管道排水和河道排涝组合设计方法.考虑到各地水文特征的差异性,以深圳市为特例对这种方法进行了分析,为城市管道排水和河道排涝的组合设计提供科学依据.
According to the urban planning plan of China, municipal department takes charge of pipe drainage planning and water resources department takes charge of river drainage planning. Because there is a difference of sampling methods of storm data and different regulation , the design standard of urban pipe drainage is usually not in accord with that of river drainage, which produce the problem about the combination design of pipe drainage and river drainage. There is a different safety because of different combination values of pipe drainage and river drainage; and this safety can be indicated by risk probability. Based on these descriptions, the calculation model was built to analyse risk probability on design storm combination of urban pipe drainage and river drainage and to guide the combination design of urban pipe drainage and river drainage. Finally, taking the rainfall data in Shenzhen City as one research object, the ease study of risk probability of the combination design was conducted, which could provide evidence on the rational selection for the design storm combination of urban pipe drainage and river drainage.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2012年第2期171-176,共6页
Engineering Journal of Wuhan University
基金
深圳市水务发展中长期战略研究项目(编号:SZCG2010021725)
关键词
管道排水
河道排涝
设计暴雨
风险率
组合设计
pipe drainage
river drainage
design storm
risk probability
combination design
