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异重流泥沙淤积是船闸引航道泥沙淤积的重要组成部分．本项研究采用局部概化实体模型，通过不同方案的对比试验，探讨了破除三峡枢纽上引航道异重流淤积的工程措施．研究表明，从引航道外引清水破异重流的效果最佳．对汛期平均情况而言，只需引入２００ｍ３／ｓ左右的清水，即可成功地破除上引航道的异重流泥沙淤积．
Sediment deposition with different heavy loads is an important part of sediment deposition in the navigation channel of ship lock. In this study, the local generalized solid model was adopted. Through the comparison experiments of different schemes, the engineering measures to eliminate the heavy sediment deposition in the upper channel of the Three Gorges Project were explored. Studies have shown that the best results are obtained when water is taken out of the lead channel and the water is destroyed. For the average flood season, only the introduction of about 200m3 / s of water can be successfully removed on the lead channel of heavy sediment deposition.