Device for simulating rock fracture penetration in tunnel excavation process and testing method

The invention discloses a device for simulating rock fracture penetration in a tunnel excavation process and a test method, and the device comprises a pressure test box, vertical jacks arranged in pairs, transverse jacks arranged in pairs, a sealing clamp assembly, a seepage water pressure loading module, an impact force application module, a fracture development monitoring module and a control system. The two transverse jacks and the two vertical jacks are arranged in the pressure test box, and the oil injection port and the oil outlet are formed in the pressure test box, so that the true triaxial stress state of a rock sample is simulated, and the natural rock stress state can be simulated in cooperation with the impact force application module; the influence of impact waves generated by blasting excavation of a tunnel on the unexcavated rock mass is simulated, the relation between seepage fractures and seepage water pressure, the rock stress state and impact disturbance is found, data support is provided f