Abstract Disc cutter consumption takes up a large part of the cost of TBM construction, and the analysis of the wear of disc cutters can provide design guidance for the cutter head and cutter arrangement in practice. Data analysis of the disc cutter wear capacity of engineering 6859 m in Yinsong, Jilin (the diameter of cutter head is 7,920 mm) shows that the wear capacity of the inner disc cutter (under the same cutter space) is linear to the position where the cutter is installed on the cutter head. Therefore, a formula for calculating the wear rate of the inner disc cutter is based on establishment of the disc cutter installation radius. In accordance with the slope coefficient (A) of the wear rate of the disc cutter, the influence of tuff and granite on it is analyzed at first, then the difference of seven different prediction model combinations of penetration (P), rock uniaxial compressive strength (UCS) and thrust (Fn) under single action and combination action are analyzed. Then, it shows that the single action based on P is the best with the R2 of 0.7156 and the wear rate of the inner disc cutter based on P and UCS is the best for combination action with the R2 of 0.726.

中文翻译：

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吉林银松工程内盘刀具磨损率预测模型

摘要 盘式刀具消耗占TBM施工成本的很大一部分，盘式刀具磨损分析可为实践中的刀盘和刀具布置提供设计指导。吉林银松工程6859m（刀盘直径7920mm）圆盘刀具磨损能力数据分析表明，内圆盘刀具（同一刀具空间下）的磨损能力与刀头位置呈线性关系。刀具安装在刀头上。因此，计算内圆盘刀具磨损率的公式​​是建立在圆盘刀具安装半径的基础上的。根据盘形刀具磨损率的斜率系数（A），首先分析凝灰岩和花岗岩对其的影响，然后分析了单作用和组合作用下贯入(P)、岩石单轴抗压强度(UCS)和推力(Fn)7种不同预测模型组合的差异。然后，表明基于P的单一动作最好，R2为0.7156，基于P和UCS的内盘刀具磨损率最佳，R2为0.726。