郓城县暴雨强度公式的推导与研究

发布时间：2018-04-11 01:08

  本文选题：暴雨强度公式 + 最大值法　； 参考：《长安大学》2014年硕士论文

【摘要】：城市排水系统的设计关系到国计民生，反映城市暴雨情况及规律的暴雨强度公式是研究城市排水系统的基础，它的精度直接影响到城市排水管网设施工程安全性及合理性。 在城市化进程中，城市的降雨情况及规律与暴雨强度均发生了较大的变化，应用于大中城市的暴雨强度公式，已经不再适合适用城市的发展。此外那些根本没有适合其本身发展的暴雨强度公式的小城市，更不适合采用大中城市的暴雨强度公式。 本论文以山东省郓城县暴雨的自记降雨初始资料为基础，，首先通过两种选样方法（最大值法和年多样值法）对比、三种频率分布模型(即皮尔逊-Ⅲ型分布、指数分布和耿贝尔分布)对所选样本资料进行拟合，通过优化回归分析法确定暴雨强度公式的模式及参数，最后确定适用于郓城县的暴雨强度公式。经分析本论文选用年最大值法进行对暴雨实测资料进行选样，采用指数分布适线法进行对暴雨强度公式的推求。最后本文依据上述过程，推求得出符合郓城县暴雨情况及规律的暴雨强度公式。
[Abstract]:The design of urban drainage system is related to the national economy and people's livelihood. The formula of rainstorm intensity reflecting the situation and law of urban rainstorm is the basis of the study of urban drainage system. Its precision directly affects the safety and rationality of urban drainage network facilities.In the process of urbanization, the rainfall situation, law and intensity of rainstorm in cities have changed greatly. The formula of rainstorm intensity applied to large and medium cities is no longer suitable for the development of cities.In addition, those small cities which do not have the rainstorm intensity formula suitable for their own development are not suitable for the rainstorm intensity formula of large and medium cities.Based on the initial data of rainstorm in Yuncheng County, Shandong Province, this paper compares two sampling methods (maximum value method and annual diversity method), and three frequency distribution models (Pearson-鈪

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