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在天然河道中常存在一些节点 ,节点对河势的控制能力是有限的。通过实例分析表明 ,在黄河下游 ,不论是游荡性河段还是过渡性河段及弯曲性河段 ,均不能靠节点 (或卡口 )控制河势。节点只是河道这条曲线上的一个点或短段 ,黄河下游按照微弯型整治方案修建的河道整治工程 ,长度现在已接近河道长度的 80 % ,已建的河道整治工程不宜称为节点工程
There are often some nodes in the natural river, and the node’s ability to control the river is limited. The case study shows that in the lower reaches of the Yellow River, no matter whether it is a wandering river, a transitional river and a curved river, the river can not be controlled by nodes (or bayonets). The node is only a point or short segment of the curve of the river. The river regulation project constructed according to the micro-bend type regulation scheme in the lower Yellow River is now close to 80% of the length of the river. The existing river regulation project should not be called a node project