Spillway, dam crest overflow rock-fill dam and spillway sliding resistance method

The invention provides a spillway, a dam crest overflow rock-fill dam and a spillway sliding resistance method. The spillway comprises an overflow control structure, a dam crest overflow rock-fill dam and a spillway sliding resistance structure, wherein a water inlet of the overflow control structure is used for communicating with a reservoir; the head end face of the discharge chute is connected with the tail end face of the overflow control structure, a water inlet of the discharge chute is communicated with a water outlet of the overflow control structure, and the discharge chute comprises multiple sections of chute bodies which are sequentially communicated in the water flow direction; the anti-slip flip anchor block is used for being connected with a bottom bedrock of the dam body of the dam crest overflow rock-fill dam, the head end face of the anti-slip flip anchor block is connected with the tail end face of the discharge chute, a water inlet of the anti-slip flip anchor block is communicated with a w