块泽河拱坝泄流鼻坎型式的比较选择

Based on the model test of flood discharge on surface sluice, the effects of continuous bucket and differential bucket on ski-jump energy dissipation were analyzed. The results indicated that nappe created by differential bucket is aerated and crashed better in the air, both in the cases of design flood and check flood. The effect of differential bucket on energy dissipation was better. The plunge pool, which absorbed remainder kinetic energy of overflow effectively, satisfied dissipation requirements both at design flood and check flood. The scouring and destroy action to downstream bed was decreased greatly by energy dissipation in plunge pool.