黄家港站受王甫洲回水顶托影响分析

Analysis of Influence of Wangpuzhou Backwater on Huangjiagang Station

应用实测资料分析了黄家港受王甫洲水库回水顶托影响，在流量为500、1000、1600m3/s时，抬高黄家港站水位分别为0.71m、0.55m、0.37m、减小黄家港至老河口河段的落差分别为4.63m、5.06m、5.56m；黄家港站的流量测验功能基本丧失，本应迁离重建，但无处可迁，只好在原地以增加2~3倍的工作量为代价推求出精度受影响的流量过程。

It is analysed how Huangjiagang station is affected by the backwater of Wangpuzhou reservoir by using measured data.When discharge is 500,1 000,1 600m2/s,the water level at Huangjiagang is raised by 0.71m,0.55m,0.37m respectively,the fall from Huangjiagang to Lao-hekou is reduced by 4.63m, 5.06m, 5.56m and the discharge measurement function at Huangjiagang is lost.It should have been moved and reconstructed.But it can be moved no-where.So we have no choice but to increase twice or three times of workload to obtain the dis-charge process whose accuracy is affected.