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通过水工模型试验研究，对三峡工程泄洪深孔采用突扩跌坎式掺气，比较了明槽坡度、挑坎高度、侧向折流器型式、出口反弧半径，以及通气孔型式和位置等因素，以优化掺气设施，保证在施工导流期及正常运行期各级库水位下（１３５～１７５ｍ）均能形成稳定空腔，达到掺气减蚀的目的。同时，对此体型设计的一般规律和空腔长度计算方法进行了探讨。
Through the hydraulic model test and research, the sudden expansion and fall canister aeration is adopted for the deep-wellings of the Three Gorges Project. The slope of slope, the height of picker, the type of lateral deflector, the radius of anti-arc of outlet and the type and location of vent And other factors to optimize the aeration facilities to ensure that a stable cavity can be formed under all stages of water level (135-175m) during the diversion and normal operation periods during the construction period to achieve the purpose of aeration and erosion reduction. At the same time, the general rules of body design and cavity length calculation are discussed.