Water stop device for full-rotation steel pipe pile construction under high water level

The utility model discloses a water stop device for full-rotation steel pipe pile construction under a high water level, which comprises a U-shaped groove bottom plate, a steel pipe pile is arranged in the U-shaped groove bottom plate in a penetrating manner, a water stop device is arranged above the U-shaped groove bottom plate and positioned outside the steel pipe pile, and backfill concrete is filled above the U-shaped groove bottom plate and positioned outside the water stop device. The steel pipe pile can slide relative to the water stop device, and the water stop device guarantees the sealing performance between the water stop device and the steel pipe pile and the U-shaped groove bottom plate. The sealing performance of the space between the water stopping device and the steel pipe pile and the U-shaped groove bottom plate is guaranteed, in the construction process, along with drilling of the steel pipe pile, a grease pump is used for being connected with a grouting pipe on the outer side of the steel