鉴于刀具消耗费在岩石掘进机（TBM）施工总成本中占有相当高的比重，从刀具消耗的原因入手，采用因果分析图法对各工程数据进行了统计和拟合，得出刀具消耗预测方法，最后结合实际工程从刀具消耗量和费用方面对该方法进行验证。

The cost of the cutters takes a quite high proportion in the total construction cost of the tunnels constructed by TBMs. In the paper, the causes for the cutter wearing are presented, the cutter consumption rates of different works are summarized and fitted by means of the causality analysis diagram method and a kind of cutter consumption prediction method is concluded. Finally, the cutter consumption prediction method is verified in terms of cutter consumption quantity and costs through project cases.