Φ1.26m土压平衡盾构机液压系统设计及仿真

Design and Simulation of the Hydraulic System ofΦ1.26 m EPB Shield

为了给市政管道施工技术提供新思路,将微型盾构施工引入地下综合管廊建设,设计并制造了Φ1.26 m土压平衡盾构机。重点完成了对盾构机液压系统的设计,其中包括刀盘及螺旋输送机系统和推进系统。对每个液压回路的运动特性进行了相关分析,并根据实际情况进行了详细计算,完成了对主要液压元件的选型。采用AMESim软件搭建刀盘液压系统模型,并针对刀盘在负载条件下的运转情况进行仿真,结果表明,盾构刀盘在不同负载条件下,转速能够保持稳定,最高转速维持在6.5 r/min左右,满足设计要求。

In order to provide new ideas for municipal pipeline construction technology,the micro-shield construction was intro⁃duced into the underground integrated pipe gallery construction,and theΦ1.26 m earth pressure balance shield machine was de⁃signed and manufactured.The design of the hydraulic system of the shield machine was completed,including the cutter and screw conveyor system and propulsion system.Correlation analysis was carried out on the motion characteristics of each hydraulic cir⁃cuit,and detailed calculations were carried out according to the actual situation,and the selection of the main hydraulic compo⁃nents was completed.The cutter drive system was modeled by AMESim software,and the operation of the cutter under load was simulated.The result showed that the shield cutter can maintain stable speed under different load conditions,and the maximum speed can be maintained at about 6.5 r/min,which meets the design requirement.