Construction method of guardrail retaining wall for highway slope protection

The invention discloses a construction method of a guardrail retaining wall for highway slope protection, which comprises the following steps: S1, collecting a waste corrugated steel guardrail, and correcting and repairing through a guardrail plate repairing machine to obtain a guardrail plate; s2, channelization facilities are placed beside the road, the facilities are arranged in a row in the direction of the road, tires are laid on the road surface, the emergency lane and the adjacent support are divided into buffer closed areas, and the area length is that the two sides of an actual construction area are each prolonged by at least 200 m; s3, removing surface topsoil and stones on the slope surface of the side slope; according to the corrugated steel guardrail, slope reinforcement and collapse slope emergency treatment can be conducted on highway subgrade soil, meanwhile, materials are based on the corrugated steel guardrail, cost is reduced, waste utilization is greatly increased, temporary protection cha