西北内陆河流区间洪水设计计算方法比较分析

鉴于西北内陆河流进行区间设计洪水计算时所选方法对堤防工程设计安全性的影响,采用推理公式法、地区综合经验法、洪峰模数法计算了克孜河卡拉贝利站—卡甫卡站、卡浪沟吕克站卡甫卡站区间设计洪峰流量,并对比分析了三种方法的计算结果。结果表明,对于西北内陆河流,洪峰模数法计算结果相对更准确、合理,另外两种算法误差较大。

Comparison and Analysis of Design Calculation Method of Regional Flood in Northwest Inland River

When calculating the design of regional flood in northwest inland river, the selected method has impact on the safety of designing engineering. This paper calculates the designed regional peak flow of Carabeli Kafuka Station and Langgouluc Kafuka Station in Kezi River by using reasoning formula method, region comprehensive empirical formula method and flood peak modulus method. Compared the calculation results of three methods, it shows that the flood peak modulus method is more accurate and rational for inland river in Northwest China while the results obtained by the other methods have much error.