Porous inflow hedging energy dissipation structure of hydraulic structure

The invention discloses a porous inflow hedging energy dissipation structure of a hydraulic structure. The hydraulic structure comprises an overflow dam and an absorption basin, wherein a water body flows through the top of the overflow dam; the absorption basin is arranged behind the overflow dam; the bottom of the absorption basin is connected with the overflow surface of the overflow dam; protective edge walls of the absorption basin are connected with edge walls of the overflow surface of the overflow dam; the top of the overflow dam is provided with multiple gate piers for dividing a water body flowing area into multiple holes, so that the water body is discharged into the absorption basin from the multiple holes; and the protective edge walls are symmetrically provided with steering edge wall sections at the downstream of the head part of a hydraulic jump by 50-80 m for narrowing an outlet of the absorption basin, so that the water current discharged from the holes of the overflow dam flows through the narrowed outlet of the absorption basin to realize the rising of the water surface in the absorption basin so as to achieve quick transition of the flowing state of the water current from rapid current to slow current. The structure has such advantages as prominent energy dissipation effect and low construction cost of the hydraulic structure.