Crawling ladder for open cut tunnel construction

An open-cut tunnel construction crawling ladder is characterized by comprising a crawling ladder body, a plurality of step tables are arranged between supporting columns on the two sides of the crawling ladder body, semicircular protective fences are arranged on the outer sides of the supporting columns on the two sides of the crawling ladder body, movable bottom wheels are arranged at the bottom of the crawling ladder body, and a first rest platform is arranged in the middle of the crawling ladder body; the top of the crawling ladder is movably connected with a second rest platform through a transition ladder, a movable top wheel is arranged at the bottom of the second rest platform, a movable middle wheel is arranged on the inner side of the middle of the crawling ladder, the movable top wheel and the movable middle wheel are tightly attached to the outer wall of a tunnel, and tools and spare parts carried during spraying operation are placed on the first rest platform so as to reduce the load of constructo