... pile gripper 夹桩器 pile-driving effect 打桩效应 pile-net composite foundation 桩网复合地基 ...
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The results show that the influence of Poisson effect to skin resistance for pile driving is little, so can be ignored.
计算结果表明，泊松效应对打桩侧阻力的影响很小，可以忽略不计。
Distribution rules of soil compaction effect, caused by pile driving to different diameter piles.
不同桩径的桩体沉桩时引起的挤土效应分布及变化规律。
The main character of the HVS is that, by means of fluctuating oil pressure, the pile-driving force can be changed in a higher frequency, and therefore better vibrating effect can be gained.
液压振动系统的主要特点是在桩机液压系统中的压桩油路产生流体压力变化和波动，从而使沉桩力出现高频的周期变化，产生振动压桩的效果。
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