Large scale clear-water local pier scour experiments
Large scale clear-water local pier scour experiments
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DOI：
10.1061/(asce)0733-9429(2004)130:10(957
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发表时间：
2004-10
影响因子：
2.4
通讯作者：
D. Max Sheppard;M. Odeh;T. Glasser
中科院分区：
文献类型：
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作者：
D. Max Sheppard;M. Odeh;T. Glasser
用三种不同直径的圆形桩(0.114、0.305和0.914 m)、三种不同的均匀无粘性泥沙直径(0.22、0.8和2.9 mm)以及不同的水深和流速进行了局部清水冲刷试验。测试是在位于马萨诸塞州特纳斯瀑布的美国地质调查局孔特研究中心的6.1米宽、6.4米深、38.4米长的水槽中进行的。这些试验将控制试验中获得的局部冲刷数据扩展到原型尺寸的桩，桩径与泥沙直径的比率为4,155。通过水槽的供水是由水电站水库提供的，悬沙浓度(冲刷负荷)无法控制。平衡冲刷深度取决于冲刷负荷浓度。
Local clear-water scour tests were performed with three different diameter circular piles (0.114, 0.305, and 0.914 m), three different uniform cohesionless sediment diameters (0.22, 0.80, and 2.90 mm) and a range of water depths and flow velocities. The tests were performed in the 6.1 m wide, 6.4 m deep, and 38.4 m long flume at the United States Geological Survey Conte Research Center in Turners Falls, Mass. These tests extend local scour data obtained in controlled experiments to prototype size piles and ratios of pile diameter to sediment diameter to 4,155. Supply water for this flow through flume was supplied by a hydroelectric power plant reservoir and the concentration of suspended fine sediment (wash load) could not be controlled. Equilibrium scour depths were found to depend on the wash load concentration.