论文部分内容阅读
针对我国重点世纪工程——港珠澳大桥岛隧工程在施工中碰到的铺设整平已完成的碎石基床上出现严重回淤现象的问题,提出了使用一套定点清淤装置解决该问题的应用方法。该方法通过升降调节油缸以调整吸头的垂直高度,在垄沟进行清淤作业时保证清淤后基床的平整度并保护吸头不被基石阻挡而损坏。为了补偿因挠度差异产生的轴变化量,根据采集到的GPS信号通过PID控制方式实时调节油缸伸缩,从清淤系统的PLC电控方面展开,详细介绍了清淤功能的实现方式。
In view of the problem of severe siltation of silt bed on the completed gravel bed encountered by Hong Kong-Zhuhai-Macao Bridge Project in the key century project of our country, a set of fixed point dredging device is proposed to solve the problem Application method In the method, the vertical height of the suction head is adjusted by raising and lowering the adjusting oil cylinder so as to ensure the flatness of the base bed after the dredging during the dredging operation and protect the suction head from being blocked by the stone. In order to compensate for the shaft variation caused by deflection, real-time adjustment of cylinder expansion and contraction by PID control based on collected GPS signals is carried out from the aspect of PLC electrical control of dredging system. The implementation of dredging function is introduced in detail.