A novel pile‐to‐pile interaction model for pipe piles that considers the soil‐plug effect is established based on the Novak plane‐strain soil model. Subsequently, the pipe‐pile dynamic interaction factor and dynamic impedance of pipe‐pile groups are derived using the superposition method. The accuracy of the proposed analytical solution is confirmed by comparison with experimental results and existing solutions. Finally, numerical results are obtained to study the influence of the soil‐plug height, shear modulus of the soil, pile spacing, and pile outer radius on the pipe‐pile dynamic interaction factor and dynamic impedance of pipe‐pile groups. The results indicate that the effect of the soil‐plug height on the pipe‐pile dynamic interaction factor and dynamic impedance is significant, whereas the shear modulus of the soil plug has virtually no effect. The proposed analytical solution can be applied to determine the optimal values of pile and soil parameters during the dynamic design of pipe‐pile groups.

中文翻译：

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考虑土塞效应的管桩群竖向动力振动的新分析方法


基于Novak平面应变土模型，建立了考虑土塞效应的新型管桩桩间相互作用模型。随后，利用叠加法推导了管桩动力相互作用因子和管桩群动力阻抗。通过与实验结果和现有解决方案的比较，证实了所提出的解析解决方案的准确性。最后，获得数值结果，研究土塞高度、土体剪切模量、桩间距和桩外半径对管桩动力相互作用因子和管桩群动力阻抗的影响。结果表明，土塞高度对管桩动力相互作用因子和动阻抗影响显着，而土塞剪切模量几乎没有影响。所提出的解析解可用于确定管桩群动态设计期间桩和土参数的最佳值。