Experimental study on the moving bed scour of the flood discharge sand flushing hole in a water conservancy project
According to the flood discharge sand hole of a water conservancy project,the scour of the down-stream riverbed in the energy dissipation area was simulated by using the method of moving bed model test,and the optimization ideas and modification schemes were put forward according to the scour under different flood discharge conditions.Through the test results,it can be concluded that the scour depth and the shape of the downstream riverbed under various conditions,the lowest point of the scour pit is on the axis of the retreat channel,the maximum scour pit depth can reach 3.84m under the checking condition,and the scour pit depth of the end of the reinforced stone cage is 1.38m.Therefore,the depth of the anti-scouring teeth wall at the end of the retreat channel should be no less than 2m to ensure the safety of the retreat channel and the relieving pool.
Flood discharge and sand flushing tunnelHydraulic model testScour depth
万方数据
维普
