全断面岩石隧道掘进机(TBM)掘进功率消耗大,掘进过程中刀盘面板需承受较大的掘进压力,会产生较大热量,且面板局部温度不等,形成的热应力会加剧刀盘局部的应力集中,在循环载荷的作用下使其产生疲劳破坏,影响刀盘的使用寿命。因此对刀盘进行热-结构耦合分析,分析不同温度载荷对刀盘结构的影响,获得刀盘的热应力,提出刀盘结构改进措施,为TBM刀盘冷却系统的温度实时监控提供理论依据。 Full-face rock tunnel boring machine (TBM) driving power consumption, cutting plate panel during boring process to withstand greater pressure, will have a greater heat, and the panel local temperature range, the formation of thermal stress will aggravate the local part of the cutter Of the stress concentration, under the action of cyclic load to fatigue damage, affecting cutter life. So the thermo-structural coupling analysis of cutterhead is carried out. The influence of temperature load on the cutterhead structure is analyzed and the thermal stress of the cutterhead is obtained. The improvement measures of the cutterhead structure are proposed to provide theoretical basis for the temperature real-time monitoring of TBM cutterhead cooling system.