在三峡工程建设过程中,三峡坝区河段水文泥沙及河床冲淤的变化情况对工程有着至关重要的影响,特别是1998年大洪水,使得三峡坝区河床冲淤及水文泥沙等要素的变化非常之大.根据1998年三峡坝区的实测资料,对坝区的水流冲淤等情况进行了分析,得出了坝区水流情况和河道冲淤的一般规律,同时也提出了一些值得关注的问题. During the construction of the Three Gorges Project, the changes of hydrological sediment and riverbed scour and silting in the reach of the Three Gorges Dam area have a crucial impact on the project. In particular, the flood in 1998 caused the riverbed scouring and silting in the Three Gorges Dam area, According to the measured data of the Three Gorges Dam area in 1998, this paper analyzes the scouring and silting in the dam area, and draws the general rules of the water flow in the dam area and the scouring and silting of the river. At the same time, some Worthy of attention.