Deformable fabricated channel on upper and lower open cut tunnel lining surfaces

The utility model relates to the field of open-cut tunnel lining construction, and discloses a deformable fabricated channel on upper and lower open-cut tunnel lining surfaces, comprising: a climbing frame located on the outer surface of a lining wall; the winch is used for pulling the climbing frame to move; the climbing frame comprises a plurality of ladder sections covering the outer surface of a lining wall, and each ladder section comprises two symmetrically-arranged arc-shaped side plates and a pedal fixedly connected between the two arc-shaped side plates; the connecting plates are used for connecting the arc-shaped side plates in the two ladder sections which are adjacent end to end through bolts; the arc-shaped guardrails are fixedly connected to the arc-shaped side plates, and the arc-shaped guardrails between every two ladder sections which are adjacent end to end are connected with each other; the trundles are fixedly connected to the bottoms of the arc-shaped side plates and make contact with the