Earth and rockfill dam composite slope protection structure

The invention provides an earth and rockfill dam composite slope protection structure. The earth and rockfill dam composite slope protection structure comprises a grouted rubble protection layer, a riprap protection slope and a sand gravel cushion layer. The sand gravel cushion layer is laid on the surface of a dam slope of a dam body; the riprap protection slope is laid on the sand gravel cushion layer; and the grouted rubble protective layer is laid on the riprap protection slope. The structure is simple, materials are easy to obtain, construction is convenient, the good protection performance of the riprap slope protection can be fully utilized, the defects of the riprap slope protection are overcome, and the durability and the protection effect of the slope protection are improved. 本发明提供一种土石坝复合护坡结构，包括浆砌石防护层、抛石护坡和砂砾石垫层；在坝体的坝坡表面，铺设所述砂砾石垫层；在所述砂砾石垫层的上面铺设所述抛石护坡；在所述抛石护坡的上面铺设所述浆砌石防护层。本发明结构简单，材料易于获得，施工方便，并能充分利用抛石护坡的良好防护性能，弥补抛石护坡的缺点，增加护坡的耐久性和防护效果。