Operation method of hard rock tunnel boring machine

The invention discloses an operation method of a hard rock tunnel boring machine. The operation method comprises the following steps that boring parameters are acquired in real time, whether the tunnel boring machine is turning or not is judged, if not, when T is greater than TMAX and less than a*TMAX, a propulsive force over-limit alarm signal is sent, and timing is conducted to obtain propulsive force over-limit alarm duration, wherein TMAX is the maximum value of propulsive force, and a is a first limit coefficient; and whether the propulsive force over-limit alarm duration is greater than or equal to a first preset alarm duration or not is judged, if so, the tunnel boring machine is controlled to stop or the TBM propulsive force T is corrected for one time according to a preset working mode, and the tunnel boring machine is controlled to work according to the corrected TBM propulsive force T. Early warning is carried out on operation possibly causing damage to mechanical parts by judging the boring parame