Test device for determining impact tendency of coal body under action of different fluids

The invention provides a test device for measuring the impact tendency of a coal body under the action of different fluids. The test device comprises a pressure kettle system, an axial loading system, a fluid injection system, a fluid pressure adjusting system, a fluid temperature adjusting system, a test piece deformation monitoring system and a processing system, according to the scheme, the influence of different fluids on the impact tendency of the coal body in an in-situ ground stress environment can be simulated, the test research on the impact tendency of the coal body under the conditions of various fluids with different temperatures and pressures and different action time can be realized, and meanwhile, the problem that the impact tendency of the coal body cannot be tested by the action of various fluids on the coal body by the existing equipment can be solved; and accurate testing of the impact tendency parameters of the coal body in different fluids and confining pressure environments cannot be rea