Device for measuring deformation of stratum soil body

The invention provides a device for measuring deformation of a stratum soil body. The device comprises a shell which comprises a first shell and a second shell which is arranged at an interval with the first shell, and the second shell comprises at least one sub-shell; the transmission rod is arranged on the central axis of the shell and is provided with a plurality of mounting positions; the plurality of measuring mechanisms are correspondingly arranged at the plurality of mounting positions, and each measuring mechanism comprises two rotating blades which are arranged in a central symmetry manner, a transmission assembly for driving the rotating blades to rotate, a fixing assembly for fixing the rotating blades, and an elastic piece; when the transmission rod is rotated in the first direction, the rotary blade can be screwed out of the mounting position and screwed into the soil body under the action of the transmission assembly; after the rotary blade is screwed into the soil body and fixed, the measuring