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根据实测资料 ,分析了长江芦家河浅滩段退水过程中沙泓冲刷流量 (Q=10 0 0 0～ 2 50 0 0m3 / s)的持续时间与当年航道发生青黄不接现象之间的联系。在此基础上 ,利用计算资料 ,分析了三峡建库以后来水来沙过程的改变对沙泓冲淤演变的影响趋势。
According to the measured data, the relationship between the duration of sandstone flushing flow (Q = 10 0 0 ~ 2 50 0 0 m3 / s) and the non-occurrence of blue and yellow in the current channel of the Lojia Reef was analyzed. On this basis, the influence of the change of water and sediment process after the construction of the Three Gorges Reservoir on the evolution and evolution of Shawang erosion and sedimentation is analyzed based on the calculated data.