Finally, the lay rules on cutterhead with disc cutters are discussed, and cutterhead plot is drawn according to the TBM being employed in First Phase of West Project of South-to-North Water Diversion.

• 最后,探讨了盘形滚刀在刀盘上的布置规律,绘制了基于南水北调西线一期工程计划采用的掘进机的刀盘简图。