Positive screw pile-suction bucket composite foundation and mounting and recycling method thereof

The invention discloses a positive screw pile-suction bucket composite foundation and an installation and recovery method thereof.The positive screw pile-suction bucket composite foundation comprises a suction bucket, the suction bucket comprises a top cover, an inner bucket and an outer bucket, and the inner bucket and the outer bucket are coaxially arranged; one end of the inner barrel and one end of the outer barrel are fixed to the top cover, the inner barrel, the outer barrel and the top cover form an annular barrel with an opening in the bottom, and the end, away from the top cover, of the inner barrel extends out of the outer barrel; the top cover is provided with an installation part, an inner barrel water pumping hole and an outer barrel water pumping hole, the inner barrel water pumping hole and the outer barrel water pumping hole correspond to the inner barrel and the outer barrel respectively, the installation part is provided with a right-hand screw pile detachably connected with the installation