收录期刊

    高级检索

    基于内涝防治效果的长短历时设计降雨等效研究

    Study on equivalent rainfall design for short and long duration based on the effect of waterlogging prevention and control

    • 摘要: 管网排水设计采用的短历时降雨与区域内涝防治采用的长历时降雨的设计标准一直困扰着广大排水工作者。在综合分析国内外各类排水系统设计标准衔接方法的基础上,结合区域内涝防治这一根本需求,构建了基于内涝防治效果的长短历时降雨设计标准的衔接方法,并以福建南平底詹片区为研究对象,分别采用数值分析、模型模拟方法开展长短历时降雨设计标准等效研究。研究结果表明,片区管网排水设计重现期为1 a、2 a、3 a、5 a时,区域内涝防治标准重现期分别为5~10 a、10~20 a、20~30 a、50~100 a。研究可为城市内涝防治及排水系统设计提供技术支持。

       

      Abstract: The short duration rainfall design standard used in pipeline design and the long duration rainfall design standard used in regional waterlogging prevention and control have troubled many drainage workers. On the basis of comprehensive analysis of various drainage system design standard connection methods carried out at home and abroad, combined with the essential requirement of regional waterlogging control, this study constructs a connection method for long and short-term rainfall design standards based on the effect of waterlogging prevention and control. Taking the Dizhan area in Nanping, Fujian as the research object, numerical analysis, model simulation and other methods are used to conduct equivalent research on long and short-term rainfall design standards. The research results indicate that when the design return period of drainage pipelines in the area is 1 year, 2 years, 3 years, and 5 years, the regional flood prevention and control standards are between 5 to 10 years, 10 to 20 years, 20 to 30 years, and 50 to 100 years. The research results can provide technical support for urban waterlogging prevention and drainage system design.

       

    /

    返回文章
    返回