Groove wall collapse simulation device

The utility model discloses a tank wall collapse simulation device which comprises a box body, a water inlet pore plate, a water outlet pore plate, a cover plate, a gas connection water inlet pipe and a displacement sensor, a plurality of pore water pressure sensors; the cover plate is mounted above the first area and is used for sealing the top of the first area; the gas receiving water inlet pipe is communicated with the first area; a plurality of pore water pressure sensors are arranged in the soil sample in the second area; the displacement sensor is installed in the simulation groove. The device can simulate the process of soil sample collapse caused by migration of water flow in a soil sample under different underground water depths in a pressurization manner; the stability of a soil layer condition in a construction area under the action of underground water can be tested, and the porosity and water erosion resistance of a soil sample can be quantitatively evaluated; meanwhile, the depth where the hole