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以土压平衡盾构刀盘故障磨损案例为背景,介绍了盾构在南京上软下硬地层的掘进过程中刀盘和刀具出现异常磨损的情况。分析了刀盘磨损故障的原因,并通故障处理过程的探究,为盾构在上软下硬地层中修复刀盘磨损提供了一定的借鉴。
Based on the case of earth pressure balancing wear and tear of shield cutterhead, the paper introduces the abnormal wear of cutterhead and cutter during the tunneling process of upper and lower soft ground strata in Nanjing. The reason of cutter wear fault was analyzed and the exploration of fault handling process provided a reference for the shield to repair the cutter head wear in the upper and lower soft ground strata.