摘要
暴雨强度公式是计算城市防洪、除涝或排水工程设计暴雨量的重要依据,其选择的合理性直接影响到城市防洪排涝系统的规模和效益。以自贡气象站为例,通过对比分析我国水利行业和市政行业暴雨强度公式计算过程的差异,用对数离差绝对值和最小准则进行暴雨强度公式参数优化并求解,研究了水利行业和市政行业2种暴雨强度公式对计算成果的影响。结果表明:(1)SCE-UA算法能够有效地解决复杂超定非线性的暴雨强度公式参数求解问题;(2)市政行业暴雨强度公式拟合效果比水利行业拟合效果更优。计算成果可指导各地区水利工程或市政工程选择合适的暴雨强度公式,对建立完善的城市排水防涝系统和减少雨洪灾害对城市影响具有重要的意义。
Rainstorm intensity formula is an important basis for calculating the rainstorm in urban flood control and drainage or waterlogging system.Selecting an appropriate formula directly affects the scale and efficiency of urban flood control and drainage system.In this paper we compared the rainstorm intensity formulae of water conservancy industry and municipal industry in China,and investigated the influence of the two formulae on calculation result by parameter optimization in accordance with criterion.Results indicate that(1)The SCE-UA algorithm can effectively solve the problem of the complex nonlinear rainstorm intensity formula.(2)The fitting effect of the rainstorm intensity formula of municipal industry is better than that of water conservancy industry.The research result would be of great significance for an improved drainage and waterlogging system and reducing rain flood disaster.
作者
李增永
史雯雨
LI Zeng-yong;SHI Wen-yu(Hydraulic Engineering Department,Sichuan Water Conservancy Vocational College, Dujiangyan 611830,China)
出处
《长江科学院院报》
CSCD
北大核心
2018年第10期64-69,共6页
Journal of Changjiang River Scientific Research Institute
作者简介
李增永(1970-),男,四川简阳人,高级工程师,硕士,主要从事水文分析计算方面的研究。E-mail:395650856@qq.com。
