盾构可编程控制器(PLC)系统设计研究

研究目的：自主开发设计盾构可编程控制器（PLC）系统，掌握盾构国产化研究的关键技术。 研究方法：针对盾构的结构特点，进行可编程控制器（PLC）的选型；通过对土压平衡盾构的工况、工作流程及功能要求分析，从系统设计、硬件配置、程序编写等方面对PLC控制系统的设计研究进行详细阐述，体现了检修维护方便，扩充灵活，降低造价的设计优点；从土压平衡控制、姿态控制、推进缸速度与压力协调控制等方面，对盾构的主要动作的控制原理进行了说明；并介绍了计算机控制系统对盾构进行参数设置、故障诊断，远程监视、数据采集分析的基本功能。 研究结果：已基本完成PLC控制系统的设计，为实现盾构可编程控制器（PLC）控制系统的国产化打下了基础。 研究结论：对盾构可编程控制器（PLC）系统的设计研究，已列入国家“863”攻关计划，为国产盾构的开发提供了试验参考。

Research and Design on the Programmable Logic Controller System in Shield Machine

Research purposes: develop PLC control system of EPB shield and master the key technology for localization of shield machine manufacture.Research methods: The paper introduced the PLC control system of EPB shield machine on the respect of design,hardware configuration,control principle,programming language and type selection of PLC control system,esp.the control principle on earth pressure,stance of shield machine,progressing speed and thrust pressure.It introduced the basic requirements of computer control system on parameter configuration,fault diagnosis and remote monitoring and data collection of shield machine as well.Research results: The design of PLC system was completed basically,which laid foundation for the localization of PLC system in Shield machine.Research conclusions:Research and design on the Programmable Logic Controller(PLC) System in shield machine has been listed in the mational plan 863,which provided experimental references for domestically made PLC control system of shield machine.