Dynamic pore water pressure gauge calibration pressure chamber device and dynamic pore water pressure gauge calibration method

A dynamic pore water pressure gauge calibration pressure chamber device of the present invention comprises a calibration pressure chamber body, an upper pressure chamber is arranged at the top of the calibration pressure chamber body, and a hollow gas distribution cavity is arranged inside the upper pressure chamber, corresponds to an upper port of the calibration pressure chamber body and is equipped with a plurality of air intake holes which are distributed in the gas distribution cavity evenly. The air intake holes are communicated with the interior of the calibration pressure chamber body, the upper pressure chamber is equipped with an air intake pipe communicated with the gas distribution cavity. A to-be-calibrated pore water pressure gauge in the calibration pressure chamber device does not swing greatly, thereby being able to improve the calibration accuracy of the pore water pressure gauge effectively, and effectively avoiding damaging the to-be-calibrated pore water pressure gauge. The present invent