三峡工程泄洪深孔陡槽方案试验研究

 通过对三峡工程泄洪深孔陡槽方案的流态、泄流能力、压力分布等物理量的测量，对其压力特性和空化特性进行了分析。结果表明，其泄流能力能满足设计要求，明槽段压力有显著提高，上游水位175m时的最小空化数亦达到0.28。陡槽方案对提高明槽段的压力及空化数，效果明显。

Experimental Study on Chute Scheme of TGP Deep Outlet

By means of measuring the flow patterns, flow capacities, pressure distributions etc., the pressure and cavitation characteristics of chute type of the TGP deep outlets are analysed. The results show that the flow capacity can meet the demand of design, the pressure on chute is increased obviously. At storage level 175m the minimum cavitation index reaches 0.28 , i.e., the chute type possesses evident effect for increasing pressures and cavitation numbers.