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为给堤防防洪工程设计计算水面曲线提供参考,以新疆喀什克孜河为例,研究了西北内陆河流的自然状况、洪水成因及类型特性,并探讨了克孜河流量沿程损失的处理方法,采用调查历史最大洪水沿河长变化的方法确定工程河段上、下游洪峰流量求得河道流量衰减率,应用HEC-RAS和MIKE11方法计算水面曲线。结果表明,该方法行之有效、可靠,百年一遇水面线推求结果均低于堤防设计堤顶高程1.71～4.36m。
In order to provide a reference for the design of dike flood control engineering to calculate and calculate the water surface curve, taking the Kashi Kezi River in Xinjiang as an example, the natural conditions, flood causes and types of inland rivers in the northwest of China were studied. , The maximum curve of river length along the length of the survey was used to determine the peak flow attenuation at the upper and lower reaches of the river. The curve of water surface was calculated by HEC-RAS and MIKE11. The results show that this method is effective and reliable. The results of water surface line in a hundred years are lower than the embankment design embankment elevation of 1.71 ~ 4.36m.