本文针对静力压桩机调平困难的问题，提出了一种采用电液比例控制技术设计的压桩机的机身自动调平系统。
This Paper Puts forward an automatic level coned system of static pile driver's body by using electro-hydraulic proportional technique to solve the difficult level control problem.
静压法施工是通过静力压桩机的压桩机构以压桩机自重和机架上的配重提供反力而将桩压入土中的沉桩工艺。
The construction of static pressure is to press the pile into the soil with reaction force provided by the static pile driver weight, and balance weight on the rack.
为使静力压桩机在工作过程中能够实现实时自动保持机身水平与水平升降，设计了一种基于PLC的压桩机电液自动调平系统。
To achieve real time automatic levelling and vertical rise up and fall down of the static pile driver′s case, an electro hydraulic levelling system is designed for the static pile driver based on PLC.
本文针对这一实际工程问题在静力压桩机吊机过载机理分析的基础上，通过方案的比较论证，首创性地提出了液压静力压桩机吊机过载保护问题的全液压解决方案。
The problem of crane overload protection of the hydraulic static pile driving machine is originally solved by a full hydraulic project through comparison and demonstration in advance in this paper.
为液压静力沉桩机液压系统的压桩油路中产生一定频率压力变化，实现振动压桩而研发了一套液压振动系统。
A hydraulic vibratory system is developed for vibratory pile pressing. It can produce variable pressure with a specified frequency in hydraulic circuit for hydraulic static pile pressing machine.
为液压静力沉桩机液压系统的压桩油路中产生一定频率压力变化，实现振动压桩而研发了一套液压振动系统。
A hydraulic vibratory system is developed for vibratory pile pressing. It can produce variable pressure with a specified frequency in hydraulic circuit for hydraulic static pile pressing machine.
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