PLC液压同步顶升技术在高速路天桥改造中的应用

摘要

结合某高速路天桥顶升工程，简单阐述同步顶升的技术原理及PLC液压同步顶升的具体施工工艺。%This thesis combines a platform bridge over ex-pressway to simply discuss the technique principle and the specified construction techniques of PLC controlled hydraulic synchronization jacking -up.