Water inlet structure for high-water-head hydropower station without setting of desilting basin

The high-water-head hydropower station water inlet structure comprises a dam and a power station water inlet, the power station water inlet is located on one side of the dam and forms an included angle with the dam, the dam is provided with a spillway, the power station water inlet is located on the upstream of the spillway, and a bottom hole is formed in the bottom of the spillway. A sand blocking ridge is arranged at the bottom of the power station water inlet, and the sand blocking ridge and a bottom plate of the power station water inlet are higher than the bottom hole of the spillway. The water inlet of the power station is located on one side of the dam and forms an included angle with the dam, so that the reservoir has a good desilting effect, the bottom hole of the spillway and the bottom plate of the water inlet of the power station have a height difference by arranging the sand blocking ridge so as to lead reservoir water with low sand content on the surface layer, and a desilting basin structure ca