Foundation pit construction recharge well structure

The invention discloses a recharge well structure for foundation pit construction, which belongs to the technical field of building construction and comprises a recharge well body, a plurality of groups of holes are formed in the well wall of the recharge well body along the extension direction of the recharge well body, and a water injection core pipe for injecting water is arranged on the inner side of the recharge well body. The water injection core pipe extends into the recharge well body, the lower end of the water injection core pipe is closed, and the upper end of the water injection core pipe is connected to a hydraulic loading device; two movable sealing assemblies are fixed to the lower portion of the water injection core pipe in a spaced mode and can expand after the water injection core pipe reaches a designated position, so that a gap between the water injection core pipe and the inner wall of the recharge well body is sealed, and a water injection hole is formed in the position, between the two