断面法河道冲淤测验的主要问题及改进构想

发布时间：2018-02-25 06:15

本文关键词： 布尔运算三维模型双垂线法断面位置断面间距断面法冲淤测验黄河下游　出处：《人民黄河》2017年04期 　论文类型：期刊论文

【摘要】：在黄河下游河道断面法冲淤测验体系中,不平行断面间距的确定方法、固定的断面位置与实时变化的河势之间的矛盾,是影响河道冲淤测验结果可靠性的主要因素。对断面间距确定和断面位置选择进行了分析,论证了"双垂线法"确定滩地断面间距的错误之处,最后提出了三维模型冲淤测验方案和冲淤量布尔运算的改革构想。
[Abstract]:In the method of scour and siltation test system of the lower Yellow River, the method of determining the distance between the non-parallel sections, the contradiction between the fixed section position and the real-time changing river regime, This paper analyzes the determination of cross-section spacing and the selection of section location, and proves the error of "double vertical line method" in determining the cross-section spacing of beach land, which is the main factor affecting the reliability of channel scouring and silting test results. Finally, the scheme of three-dimensional model scour and silt test and the reform conception of Boolean operation of scour and silt are put forward.
【作者单位】：黄河水文勘察测绘局;
【分类号】：TV149

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