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泥水平衡盾构机颚式和锥式破碎模式适应的地层、隧道规格均不相同,为了解决较复杂隧道工程采用单一破碎模式的盾构机施工效率较低的问题,通过研究盾构机破碎机理,对泥水平衡盾构机进行了复合破碎模式改造。改造共分为4个步骤:封闭泥水舱、锥式破碎筋设计安装、栅隔板设计安装、锥式破碎系统配套喷嘴改造,改造后泥水平衡盾构机为两种破碎模式并存,提升了各地层的适应能力,使盾构机在复杂地层的盾构掘进效率提高了20%。
In order to solve the problem of low construction efficiency of shield machine adopting single crushing mode for more complex tunneling projects, the mechanism of shield machine crushing , The mud-water balance shield machine was broken mode transformation. Reconstruction is divided into four steps: closed mud tank, cone crusher design and installation, grid partition design and installation, conical crushing system supporting nozzle transformation, after the transformation of slurry balance shield machine for the two crushing mode coexistence, improved around The adaptability of the layers increases the shield tunneling efficiency by 20% in complex formations.