THMC coupled coal and rock mass triaxial rheological test multi-parameter measuring device and method

The invention belongs to the technical field of rock mechanics and engineering, and particularly relates to a THMC coupled coal and rock mass triaxial rheological test multi-parameter measuring deviceand method. According to the device, servo loading control is adopted for axial loading, the temperature is controlled by adopting a constant-temperature water bath, the confining pressure is controlled through a confining pressure tracking pump, and pore water pressure is applied to a test piece; and a plurality of uniformly distributed displacement sensors are adopted to indirectly measure theradial strain of the test piece by measuring the radial deformation of a plurality of points on the circumference of the test piece. According to the invention, the problem that the radial deformationof a triaxial rheological test sample taking water as a confining pressure medium cannot be measured can be solved, uniaxial and triaxial tests of coal and rock masses under the conditions of different temperatures, confining