潭江流域设计洪水及水面线分析计算  

Analysis and Calculation of Design Flood and Water Surface Profile in Tanjiang River

作　　者：万育安[1] 

机构地区：[1]江门市水利水电勘测设计院有限公司,广东江门529050

出　　处：《人民珠江》2015年第2期33-36,共4页Pearl River

摘　　要：采用以水文比拟法为主的方法及支流逐步叠加法计算了潭江流域的设计洪水,对2种方法的计算成果进行了比较,最终推荐采用以水文比拟法为主计算的设计洪水成果。在此基础上,利用HEC-RAS软件建立了潭江干流一维河网数学模型,计算潭江干流设计水面线,并利用实测及历史调查资料对水面线成果进行合理性检查。结果表明,水面线计算结果与水位站实测排频成果及典型断面历史洪水位成果吻合较好,成果合理,可作为潭江干流堤防加固及其他防洪、排涝工程设施建设的依据。The hydrologic analogy method and flow superposition method were used to calculate design flood in Tanjiang River respec-tively. By comparing the two results, the design flood estimation based on the hydrological analogy was recommended. Based on this re-sult, the Tanjiang River 1-D mathematical model was also established to simulate the design water surface profile, Furthermore, the water surface profile reasonableness check was performed through analyzing the observed data and historical surveying data and it showed that the model simulations were in good agreement with the measured result at the water level station and the investigation result of the historical flood stages on typical section. The calculation result of water surface profile is reasonable and can be used as basis of dykes reinforcement and other flood control facilities projects of Tanjiang River.

关 键 词：设计洪水 水面线 分析计算 潭江流域 

分 类 号：TV122[水利工程—水文学及水资源]