Hole sealing structure of base water pressure monitoring hole

The utility model provides a hole sealing structure of a base water pressure monitoring hole, which comprises in-hole filler, a water stop plate, a line pipe and a sealing device, the in-hole filler comprises a sand layer and a clay layer, a pore pressure meter is arranged in the sand layer, the water stop plate is arranged between the sand layer and the clay layer, a data cable penetrates through the middle of the water stop plate, the line pipe is embedded in the in-hole filler, and the sealing device is arranged on the line pipe. A data cable penetrates through the wire pipe, the sealing device comprises a silica gel plate and a flat iron bar, and the silica gel plate and the flat iron bar are fixed to the concrete cushion layer through glass cement and cement nails. High-quality rapid hole sealing of the base water pressure monitoring hole under the field site condition can be achieved, the sandy soil material can protect the pore pressure meter embedded in the sandy soil material, the good water permeabi