Pumping-type water-gas absorption coal body deformation test device and pumping-type water-gas absorption coal body deformation test method

The invention relates to the technical field of experimental facilities and discloses a pumping-type water-gas absorption coal body deformation test device and a pumping-type water-gas absorption coal body deformation test method. The device comprises a cylinder sealing tank, a height adjustment unit, a gas injection unit and a data acquisition unit, wherein a coal sample and water are placed in the cylinder sealing tank; the height adjustment unit controls the height of a connection shaft of the cylinder sealing tank; the gas injection unit is communicated with the interior of the cylinder sealing tank and is used for injecting gas into the cylinder sealing tank; the data acquisition unit is communicated with the interior of the cylinder sealing tank and is used for acquiring strain data of the coal sample. The device and the method are capable of realizing deformation test on coal bodies in different regions during a water-gas absorption process and testing deformation of the coal bodies in a wet region aft