Water stop occlusion steel pipe pile

The utility model discloses a water stop occlusion steel pipe pile which comprises a steel pipe pile body, one end of the steel pipe pile body is provided with a connecting section in a welded mode, the bottom of the connecting section is provided with a sealing plug, one end of the sealing plug is provided with shallow threads, the sealing plug is arranged at the bottom of a grouting pipe in a screwed mode through the shallow threads, and the stability of installation of the sealing plug is guaranteed. When a certain amount of slurry is injected into the grouting pipe, the sealing plug can be ejected out, and a female lock catch is welded to one end of the connecting section. When the steel pipe pile is used, a dynamic water stop continuous steel pile wall of a deep foundation pit of a soft soil stratum in a central urban area is formed, and the steel pipe pile is waterproof, can meet the requirements of strength, rigidity and integrity, and is light in weight, low in cost, safe, reliable, convenient to moun