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戚玉亮, 大塚久哲. 考虑土-桩-结构相互作用的群桩振动台试验研究[J]. 岩土工程学报, 2013, 35(zk2): 1024-1027.
引用本文: 戚玉亮, 大塚久哲. 考虑土-桩-结构相互作用的群桩振动台试验研究[J]. 岩土工程学报, 2013, 35(zk2): 1024-1027.
QI Yu-liang, HISANORI Otsuka. Shaking table tests on pile groups considering pile-soil-structure interaction[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 1024-1027.
Citation: QI Yu-liang, HISANORI Otsuka. Shaking table tests on pile groups considering pile-soil-structure interaction[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 1024-1027.

考虑土-桩-结构相互作用的群桩振动台试验研究

Shaking table tests on pile groups considering pile-soil-structure interaction

  • 摘要: 土-桩-结构相互作用下群桩动力响应的研究存在着许多不确定性,造成其在实际工程设计应用中受到限制。通过不同加速度峰值、不同频率正弦波和泰州地震波入射时,考虑桩土相互作用的群桩振动台试验,研究了土-桩-结构体系相互作用机理,同时对群桩动力反应规律进行了分析。试验结果将为今后深入的理论分析研究提供依据。

     

    Abstract: Based on the deformation characteristics of composite ground under the flexible foundation, the composite ground is divided into four parts, including fill, cushion, composite foundation and underlying layer. Through the analysis of a typical element, a simplified analytical model, which considers the above four parts as an interactive system, allows for the relative movement between piles and soils and assumes different settlements of foundation soils at the same level plane, is presented. And then according to the compatibility of stress and deformation on the interfaces between these four components, the formulas for settlement and stress ratio of pile-soil, which is used to characterize the behaviors of the composite ground, are derived. Finally, it is demonstrated that the results from this solution are in accordance with the measured ones of a project. So the proposed method can reflect the working behaviors of composite ground under the flexible foundation favorably.

     

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