A subsea pipeline riser pipe clamp is composed of a clamp column and a connecting member. Longitudinal rib plates are symmetrically arranged on the side eaves, and corresponding bolt holes are drilled. The upper ends of the two slips are correspondingly provided with a suspension supporting ring plate and a reinforcing plate. The corresponding places of the two plates are respectively provided with inserted rotating shafts to support annular plates, and there are rotating shaft holes on the center line where the two plates are inserted and intersected, and the rotating shafts are inserted into the holes.
Process: cutting, welding, rolling, drilling, etc.