岸边溢洪道进水明渠优化试验研究

Experimental Study on Inlet Channel Optimization of Bank Spillway

某水库溢洪道泄洪时,进水明渠流态紊乱。为了改善渠内流态,通过水工模型试验,分析溢洪道泄流能力、水流流态等,优化进水平台高程、导墙上游顶部结构。结果表明,优化方案不仅能改善进水明渠水流流态,还能增加溢洪道的泄流能力,且不需要拆除原导墙,有效减少改造成本,达到优化目的。

The flow pattern of the channel is turbulent when the spillway of a reservoir is discharged.The spillway discharge capacity and flow pattern were studied through hydraulic model test in order to improve the flow pattern of the channel.According to the study results,the elevation of inlet platform and the upstream top structure of guide wall were optimized.The results show that the optimization scheme not only improves the flow pattern of inlet channel,but also increases the discharge capacity of spillway,and does not need to remove the original guide wall,which effectively reduces the cost of reconstruction and achieves the purpose of optimization.