石梁河水库泄洪闸闸下冲刷试验研究

通过局部动床模型试验，研究了石梁河水库新老泄洪闸闸下河床冲刷特性，分析了枢纽运行方式、出池水流的流速流态等因素对闸下冲刷的影响，提出了新老闸联合运行的减冲运行方式和消力池采用扭曲边墙以及在二级陡坡上加设马蹄形消力墩等减冲工程措施。

Test of Scour under Sluice Gates of Shilianghe Reservoir

Through local dynamic-bed model test,the scour characteristics are studied of river bed under the new and old sluice gates of Shilianghe Reservoir;main factors are analyzed such as the operation mode of the project that influence the scour under the sluice gats;reasonable scour lessening mode of united operation of the new and lod sluice gates is suggested;and efficient engineering measurements are proposed for lessening scour,such as distorting side-wall in the stilling basin and baffle blocks of horseshoe shape on the secondary dropoff.