Model test device for simulating tunneling of shield machine

The invention relates to the technical field of tunneling experiments of shield machines, in particular to a model test device for simulating tunneling of a shield machine. A fixed seat I is connectedwith a base, a sliding rod I is connected with a motor fixed seat, a fixed sleeve I is connected with a support rod I, and motors are fixed to the motor fixed seat by motor fixed sleeves. Tunneling simulation ends are connected with the motors, a geological fixed seat is connected with a sliding rod II, a fixed sleeve II is connected with a sliding rod II, and the fixed sleeve II is connected with a support rod II. A stepper motor is connected with a coupling, the coupling is connected with a drive shaft, the drive shaft is connected with a fixed seat II by a bearing, the fixied seat II is connected with the base through bolts, and the support rod II is connected with the drive shaft. A practical effect of simulating the shield machine acting on soil of different soil quality can be provided, and a reference for