【摘要】 针对莲花台水电站泄洪建筑物泄量大、单宽流量大、河床易冲刷的特点,通过模型试验对原设计的挑流消能方案和Y型宽尾墩+戽式消力池联合消能工方案进行了对比研究。试验结果表明,联合消能工方案在典型工况下消能充分,下游河床及电站尾水护坦末端冲刷大为减轻,出池水流衔接平顺,下游河道流态明显改善。该研究成果对类似工程有借鉴意义。更多还原

【Abstract】 As the large flood discharge,large discharge per unit width and easy to scour riverbed,the original designed ski-jump energy dissipater and the combined energy dissipater with Y-type flaring pier and bucket stilling basin were compared by experiments for Lianhuatai Hydropower Station.The results show that the combined method can completely dissipate the energy under typical operation condition,the erosion on riverbed and the end of tailrace apron are greatly reduced,the pool water can flow away smoothly and the downstream river flow is significantly improved.The study can be as references to similar projects.更多还原