Dam with from energy dissipation function

The utility model discloses a dam with from energy dissipation function, by the overflow dam body, choose a class mound, overflow surface, overfall dam afterbody defrlector bucket from the energy dissipation and form, choose the fixed setting of the perpendicular overflow surface of class mound on the overflow dam body from the energy dissipation, it sets up one row at least to choose class mound from the energy dissipation. The utility model discloses a dam with from energy dissipation function sets up on overflow surface can be from the mound body of energy dissipation more than one row, when the lower sluicing stream that has powerful kinetic energy meet have from the energy dissipation function choose class mound the time transversely chosen, change the flow direction, two adjacent chooses the rivers that class mound chooses from the energy dissipation and impactes each other, utilize the energy dissipation of rivers self -energy, the efficiency effect of maxmizing, choose the rivers after most energy is subductd to class mound through several from the energy dissipation, upwards provoke by overfall dam afterbody defrlector bucket again, the energy is subductd totally. Can reduce the erodeing of low reaches, reduce absorption basin's excavation volume, shorten absorption basin length, save the construction investment.