Device for reducing pore water pressure in pile foundation construction

The utility model discloses a device for reducing pore water pressure in pile foundation construction, which belongs to the technical field of pile foundation construction and comprises a mounting plate, a rotating component and a driving device positioned on the left side of the rotating component are fixedly mounted below the mounting plate, and the driving device is meshed with a second gear. The second gear is fixedly connected to a rotating assembly, and the rotating assembly is fixedly connected with the pile base body. According to the device for reducing the pore water pressure in pile foundation construction, through the arrangement of the water inlet hole, the sealing plug, the one-way valve and the water outlet pipe, when the pile base body is screwed downwards into the soil, pore water can enter an inner cavity of the pile base body through the water inlet hole, and then the pore water pressure in the process that the pile base body enters the soil can be reduced; the sealing plug can drive the sl