黄河下游高村至孙口河段因经常出现过流能力明显小于其上下游河段的驼峰现象而被称之为驼峰河段。根据实测资料分析驼峰河段不同于其上下游河段特殊的边界条件,探讨驼峰河段特殊的演变规律,结果表明:1驼峰河段具有易淤难冲的特点,属于冲淤交替变化的临界河段;2黄河下游河底高程抬升幅度最大的河段在高村附近,比降最小的河段在孙口—艾山附近;31974—2002年滩唇高程在驼峰河段增加最多,驼峰河段平滩河宽远小于上游河段平滩河宽,驼峰河段平滩断面面积也较小。 From the lower reaches of the Yellow River to the mouth of the mouth of the mouth of the mouth of the river due to frequent over-flow capacity was significantly less than the upper and lower reaches of the hump phenomenon is known as the hump reaches. According to the measured data, the hump peak section is different from the special boundary conditions of its upper and lower reaches, and the special evolution of the hump reaches is discussed. The results show that: 1 the hump reaches have the characteristics of easy silting, River section; 2 The river reach of the lower reaches of the Yellow River is the highest in the vicinity of Gaocun and the lowest is near Sunkou-Ai Shan; The lip-lip elevation of 31974-2002 is the most in the hump reach, The width of the beach is much less than the width of the beach of the upper reaches and the area of ​​the beach of the hump peak is also smaller.