沧州市城区设计暴雨研究

Study on Design Storm in Cangzhou City

依据沧州市城区附近40年（1971～2010年）原始暴雨资料,采用年最大值法和非年最大值法进行选样,经过频率计算确定不同重现期下的设计暴雨强度,基于R软件和MATLAB软件实现暴雨强度公式参数求解,得到沧州市城区暴雨强度公式,并以2005年7月23日10时～24日10时典型暴雨,利用同频率放大法推求设计暴雨过程。

On the basis of forty years＇（1971 ～ 2010） original rain data near Cangzhou city,the annual maximum method and the non-annual maximum method are adopted to improve the sampling.Frequency calculation is used to determine the design storm intensity under different return period.Based on R software and MATLAB software,the rainstorm intensity formula parameters are realized,the Cangzhou city storm intensity formula is obtained.Through the typical heavy rain from ten o＇clock on July 23,2005 to ten o＇clock on July 24,2005,the method of same frequency magnify is used to derive the design rainstorm process.