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刀盘是盾构机的重要组成部分之一,刀盘及刀具选择是否合适会直接影响盾构机的切削效果和掘进速度,甚至关系到盾构施工方案的成败。本文结合西安地铁一、二号线盾构机施工中所用刀盘形式的优缺点分析,进而提出合理的选择建议。刀盘设置在盾构机的最前方,既能掘削地层的土体,又能对掘削面起一定的支承作用。刀盘按照其正面形状分为辐条式和面板式。辐条式刀盘由辐条及布设在辐条上的刀具组成,其特
The cutterhead is one of the important components of the shield machine. Whether the cutterhead and the tool are suitable will directly affect the cutting effect and the speed of the tunneling machine, and even the success or failure of the shield construction scheme. Based on the analysis of advantages and disadvantages of the cutterhead used in the shield machine construction of No. 1 and No. 2 Xi’an Metro, this paper puts forward some reasonable suggestions. The cutterhead is arranged in the forefront of the shield machine, which can excavate the soil of the formation and can also play a supporting role on the digging surface. Cutter according to its positive shape is divided into spoke and panel type. Spoke cutter spoke by the spokes and the knives arranged on the spokes, its special