水资源与水工程学报2017，Vol.28Issue(5)：76-79,86,5.DOI:10.11705/j.issn.1672-643X.2017.05.13
不同拟合方法推求暴雨强度公式研究
Study on the formula of deducing heavy rain intensity by different fitting methods
摘要
Abstract
The populous County Shuyang County has been borrowing nearby city's rainstorm formula.It is necessary to compose its own formula of rainstorm intensity to provide scientific basis for the planning and design of urban drainage and waterlogging system.In this paper,based on the precipitation data of Shuy-ang county collected for 35 years from 1981 to 2015,11 annual rainfall maximum were selected as the measured samples.Based on the P -Ⅲ distribution, exponential distribution and Gumbel distribution, the theoretical frequency curve analysis is carried out to determine the recurrence period -rainfall intensi-ty to the time(P-i -t)relationship table,and to calculate the storm intensity formula.By drawing the new formula and the old formula of rainstorm intensity ~period curve the comparative analysis was made The results show that the difference between the two models is large,so it is necessary to compose the for-mula of rainstorm intensity in Shuyang county.关键词
城市暴雨强度公式/排水防涝/频率分布曲线拟合/误差分析Key words
urban storm intensity formula/drainage and water protection/frequency distribution curve fitting/error analysis分类
建筑与水利引用本文复制引用
万永静,叶兴成,王飞,刘俊,李岱远..不同拟合方法推求暴雨强度公式研究[J].水资源与水工程学报,2017,28(5):76-79,86,5.基金项目
国家自然科学基金项目(41471015) （41471015）
