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刀盘作为盾构机的主要工作部件,在盾构掘进过程中起开挖地层,稳定掌子面,搅拌渣土等功能,盾构掘进作业时刀盘的结构形式和刀具好坏以及刀具的配置形式直接影响盾构施工进度和盾构施工的经济效益,本文通过在广州地铁四号线的实际施工经验,介绍了刀盘的结构、刀具破岩机理和刀圈失效原因和盾构机穿越不同地层时的刀具配置形式。
As the main working part of the shield machine, the cutter head plays the functions of excavating and stratum, stabilizing the face and stirring the soil during the tunneling process, the structure of the cutter head and the quality of the cutter during the operation of shield tunneling, The configuration forms directly affect the progress of shield construction and the economic benefits of shield construction. This paper introduces the structure of cutter head, the rock breaking mechanism of cutter and the cause of failure of cutter ring and the penetration of shield machine through the practical construction experience of Guangzhou Metro Line 4 Different strata of the tool configuration.