MOBILE WORK FRAME FOR SPRAYING, TUNNEL CONSTRUCTION METHOD USING THE SAME, AND OPERATION METHOD FOR SPRAYING WORK

摘要

PROBLEM TO BE SOLVED: To provide a mobile spraying work frame permitting the execution of shotcrete work in addition to other kinds of work. SOLUTION: This work frame comprises a mobile gantry type frame 2 equipped with a traveling equipment 3 at a lower end portion of leg and a spray robot 4 holding a spray nozzle 5 at the tip portion of an arm installed at the front position in the travel direction of the gantry type frame 2, and a tunnel construction machine such as a muck loading machine, drill carriage or the like can be carried through the inside of the gantry type frame 2.