This paper mainly studies a method of calculating the weight of the TBM disc cutter load, and the way of applying the TBM disc cutter load in the simulation analysis. The superiority of this method compared to the previous research is also illustrated. During the research, based on the force model on the disc cutter head of a tunneling boring machine, a CSM prediction formula that shows good accuracy in engineering practice is used to work out the way and size of the cutter head loaded. In addition,this art...