本文根据宝珠寺水电站中孔单体水工模型试验,对布置在右岸导流明渠上的二中孔小挑坎挑流,利用明渠消力池作为永久性水垫塘的消能型式及其水力学问题,进行了探讨。并着重从水流流态、流速、压力、脉动压力等几个方面,研究了水垫塘的受力情况、掺气减蚀措施,提出了适合于该工程中孔的坎槽组合式通气槽体型。 According to the single-hole hydraulic model test of Baozhusi hydropower station, this paper analyzes the energy dissipation type and its water of the two-well small-dip ridge which is arranged on the right bank diversion channel and uses the open channel stilling pool as the permanent water cushion pond Mechanical problems were discussed. The emphases are put on emphases on the flow field, flow velocity, pressure and pulsating pressure. The emphases of aeration and cavitation erosion are studied. .