黄河艾山以下河道在长时段表现为不断淤积,调查分析滩面淤积值为每年3.2～5.1cm;人民治黄后,主河槽变化较小,水流3000m3/s时不出主槽,其水位变化基本反映了淤积情况,1950～2002年同流量水位年均升高了5～8cm;从建桥工程地质勘察的资料分析,主河槽年均淤积6.2～8.6cm。 During the long period of sedimentation, the sediment of the river following the Aishan section of the Yellow River is constantly silting up. The sedimentation value of the beach surface is 3.2-5.1cm per year. When the people rule the Yellow River, the change of the main channel is small. When the water flow is 3000m3 / s, The siltation basically reflects the situation. From 1950 to 2002, the annual average water level increased by 5 ~ 8cm. According to the geological survey data of bridge construction, the annual sedimentation of main channel was 6.2 ~ 8.6cm.