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盾构机刀盘刀具是保证盾构施工的重要部件,刀具的选择配备取决于盾构机掘进的地层条件。针对西气东输二线北江盾构工程典型泥质砂岩的特点,对盾构机刀盘刀具的配备进行了研究,分析了刀具的切削原理和刀具之间的差异,并对刀盘刀具的切削原理进行了有限元模拟。工程实践表明:通过优化刀具配备,减少泥饼产生,泥质砂岩地层盾构机盾构掘进综合效率提高了12%,延长了刀具的使用寿命,降低了工程成本和风险,验证了刀具配置的合理性。
Shield machine cutter tool is to ensure the construction of shield an important component, the choice of tooling depends on the shield tunneling conditions. According to the characteristics of the typical shaly sandstone in the Beijiang River Shield Project of the Second West-East Gas Pipeline Project, the equipment of the shield cutter was studied. The cutting principle and the difference between the tools were analyzed, and the cutter of the cutter was cut The principle of finite element simulation. The engineering practice shows that by optimizing the tooling and reducing the mud cake, the comprehensive efficiency of shield tunneling in shaly sandstone stratum has been increased by 12%, which prolongs the service life of the tool and reduces the project cost and risk. rationality.