Evaluation of Dynamic Experiments on Pile Group
Evaluation of Dynamic Experiments on Pile Group
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群桩动力试验评价
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
B. E. Sharnouby
中科院分区：
文献类型：
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作者：
M. Novak;B. E. Sharnouby
在现场进行了大群小桩密距动力试验。将试验结果与考虑群效应（即桩-土-桩相互作用）的不同方法对竖向和水平响应的理论预测进行了比较。采用的理论方法包括静力相互作用因素、动力相互作用因素、完全动力分析以及直接静力分析和等效墩。与试验结果的对比表明，动力分析技术能够预测小应变下群桩动力行为的主要特征，相互作用的影响非常显著。忽略桩-土-桩相互作用会使群桩分析变得不现实。
Dynamic experiments with a large group of small closely spaced piles were conducted in the field. The results of the experiments are compared with theoretical predictions made for vertical and horizontal response on the bases of different approaches accounting for the group effects, i.e., pile‐soil‐pile interaction. The theoretical approaches employed include static interaction factors, dynamic interaction factors, and complete dynamic analysis, as well as direct static analysis and the equivalent pier. The comparison with the experiments indicates that dynamic analytical techniques are able to predict the main features of dynamic behavior of pile groups for small strains and that the interaction effects are very significant. The omission of pile‐soil‐pile interaction can make the analysis of pile groups quite unrealistic.