Analysis of the wear state of the disc cutter based on the TBM cutter wear monitoring data
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摘要: TBM在长距离硬岩中掘进时,不可避免地会遇到滚刀磨损的问题。及时判断滚刀的磨损状态是降低刀具损耗、提高TBM施工效率的关键问题。本文依托于内蒙古引绰济辽输水工程,在TBM上搭载刀盘状态监测系统,实时获取滚刀的磨损量。通过分析正常磨损机制下单把滚刀的全寿命服役过程和滚刀破岩体积磨损速率的演变规律,得出滚刀全寿命服役过程中存在4个磨损阶段:加速磨损阶段、减速磨损阶段、稳定磨损阶段和二次减速磨损阶段。通过分析正常磨损机制与异常磨损机制下滚刀监测数据的特征,提出了基于滚刀磨损量波动范围和相邻滚刀温差的异常磨损判定方法。研究可为硬岩地层TBM滚刀磨损状态评价及施工换刀策略提供参考。Abstract: During long-distance hard rock tunneling with TBM (Tunnel Boring Machine), cutter wear is inevitable. Timely assessment of cutter wear status is critical for reducing tool consumption and improving TBM construction efficiency. Based on the field application of a cutting tool condition monitoring system installed on a TBM in the Inner Mongolia Chaoer River to Xiliao River water conveyance project, this study achieved real-time acquisition of cutter wear data. By analyzing the full-life service process of individual cutters under normal wear mechanisms and the evolution pattern of rock-breaking volume wear rates, four distinct wear stages were identified: accelerated wear stage, decelerated wear stage, stable wear stage, and secondary decelerated wear stage. Through comparative analysis of monitoring data characteristics under normal and abnormal wear conditions, an abnormal wear judgment method was proposed based on fluctuations in cumulative wear volume and temperature differences between adjacent cutters. The research provides practical references for evaluating cutter wear status in hard rock formations and optimizing cutter replacement strategies in TBM projects.
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Key words:
- cutter wear /
- cutting tool temperature /
- monitoring system /
- condition assessment
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表 1 监测传感器安装信息
Table 1. Installation information of sensor
滚刀编号 滚刀安装半径/mm 刀间距/mm 10# 953 84 13# 1205 84 15# 1369 80 16# 1449 80 21# 1843 78 22# 1921 78 -
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