Positioning and orienting wall construction method for tunnel large pipe shed

The invention discloses a positioning and orientation wall construction method for a tunnel large pipe shed, a large pipe shed positioning device is adopted for positioning and orientation wall construction of the large pipe shed, and the large pipe shed positioning device comprises a plurality of steel supporting frames arranged in the tunnel direction; the positioning device comprises a plurality of steel supporting frames arranged in the tunnel direction. The steel supporting frame comprises a plurality of single-truss supporting frames, and the heights of the single-truss supporting frames are sequentially increased in the tunnel direction. The single-truss supporting frames are connected into a whole through horizontal connecting rods. The steel supporting frame further comprises a positioning plate arranged on the outer side of the single-truss supporting frame through a plurality of fixing bolts, and the positioning plate is evenly bent to form a plurality of arc-shaped positioning cavities facing the