Creep test device and test method for crushed coal and rock mass

The invention discloses a broken coal rock mass creep test device and test method, the device comprises a creep loading device, the creep loading device comprises a counterforce frame, a normal loading device and a horizontal confining pressure device; the horizontal confining pressure device comprises a plurality of graded loading module units, and each graded loading module unit comprises a horizontal confining pressure cavity with an upper opening and a lower opening, a confining pressure loading mechanism used for providing confining pressure and a connecting mechanism vertically connected with other graded loading module units. Confining pressure provided by the confining pressure loading mechanism in the X direction and the Y direction can be controlled respectively; the creep loading device further comprises a bottom plate. According to the application, different stratum environments can be truly simulated, the problem of stress deformation of the crushed coal and rock mass under different horizontal c