北拒马河南支河道总干渠倒虹吸上下游段水面线分析

Analysis of upstream and downstream surface line of the inverfed siphon in the main canal of the South-to-Norch Water Diversion Project in the south branch of North Juma River

通过工程实例介绍了拟建工程概况和河道现状情况,论述了北拒马河南支河道纵向地形存在较高落差的河道常态水面线的推算方法、计算条件及结果分析,为北拒马河南支河道总干渠倒虹吸防护工程提供了设计依据。

This paper introduces the general situation of the proposed project and the status quo of the river channel through engineering examples,and discusses the calculation method,calculation conditions and result analysis of the normal water surface line of the river channel with a relatively high drop in the longitudinal terrain of the south branch of the North Juma River.Itprovides the design basis for the inverted siphon protection project of south branch of North Juma River.