一、黄河下游孟津铁谢至东明高村间长275千米,为典型的游荡性河道。当前黄河大堤经过多次加高培厚,河槽变迁、主流摆动,发生“横河”、“斜河”可能引起的冲决,已是防洪中突出的矛盾。因此,以控导主流、缩小 First, the lower reaches of the Yellow River Mengjin Tie Xie Dongming village 275 kilometers long, a typical wandering river. At present, after many times of raising and thickening of the Yellow River embankment, the river channel changes and the mainstream wobbles and the possible blunders in the “Yokogawa” and “Hagawa” rivers have emerged as prominent contradictions in flood control. Therefore, to control the mainstream, narrow