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针对工程下泄单宽流量较大，坝较低，下游河床岩石较软，以及低弗氏数的特点，为满足消能，减少坝下游冲刷，提出采用宽尾墩挑流消能．尔后经水工模型试验确定用异型宽尾墩消能，实践说明，效果达到设计要求.
In order to meet the requirements of dissipating energy and reducing the erosion of downstream of dam, a single wide flow discharge, lower dam, softer of downstream river bed rock and low Freundlich number are proposed. Afterwards, hydraulics model tests were conducted to determine the energy consumption of the profiled flaring pier. Practice shows that the effect meets the design requirements.