振动挤密桩桩距对振密变形的影响

Effects of Spacing of Vibro-Compaction Piles on Vibro-Deformation

振动挤密桩因其在抗地震液化方面的有效性而得到了广泛的应用。选择合理的桩距是这种地基处理设计中应考虑的主要问题。以往在设计桩距时,要么不考虑振密变形,要么把振密变形当做定值考虑,本文通过对某工程现场试验的分析,证实了振密变形的重要性,讨论了桩距对振密变形的影响。

The vibro-compaction method has been used extensively because it is very effective on liquefaction resistance. The main problem of this method is to choose the appropriate pile spacing. In the past, the vibro-deformation was either ignored or regarded as a fixed quantity. Based on the data of field experiment combined with an engineering case, the importance of vibro-deformation is verifed and the effect of pile spacing on vibro-deformation is discussed.