Rocking vibrations of a rigid embedded foundation in a poroelastic soil layer |
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| Authors: | XQ Hu YQ Cai J Wang GY Ding |
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| Institution: | 1. College of Architecture and Civil Engineering, Wenzhou University, Wenzhou 325035, China;2. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China |
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| Abstract: | An approximate analytical method is presented for the dynamic response of a rigid cylindrical foundation embedded in a poroelastic soil layer under the excitation of a time-harmonic rocking moment. The soil underlying the foundation base is represented by a single-layered poroelastic soil based on rigid bedrock while the soil along the side of the foundation is modeled as an independent poroelastic stratum composed of a series of infinitesimally thin layers. The accuracy of the present solution is verified by comparisons with existing solutions obtained from other researchers. Numerical results for the rocking dynamic impedance and dynamic response factor are presented to demonstrate the influence of nondimensional frequency of excitation, poroelastic soil layer thickness, depth ratio of the foundation and internal friction of the poroelastic soil. |
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| Keywords: | Poroelasticity Dynamic soil&ndash structure interaction Embedded foundation Layered soil |
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