- Title
- Vertical vibration of rigid strip footings on poroelastic soil layer of finite thickness
- Creator
- Zheng, Changjie; He, Yuze; Kouretzis, George; Ding, Xuanming
- Relation
- Soil Dynamics and Earthquake Engineering Vol. 168, Issue May 2023, no. 107836
- Publisher Link
- http://dx.doi.org/10.1016/j.soildyn.2023.107836
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2023
- Description
- This paper presents a numerical solution that describes the response to forced vertical vibrations of rigid strip footings founded on the surface of a poroelastic soil layer of finite thickness. To mathematically describe this mixed boundary value problem, we relax the boundary conditions and cast it as a pair of dual integral equations, which are transformed to a system of linear equations by means of Jacobi orthogonal polynomials. The system is solved numerically to provide the frequency-dependent footing compliance, and the associated nearby soil displacement. Results obtained with the model at hand underline the important contribution of standing waves to the response of the soil-foundation system, and draw the limits of existing solutions that consider the foundation soil as infinite half-space, where standing waves cannot form.
- Subject
- strip footing; vertical vibration; soil-structure interaction; poroelastic soil
- Identifier
- http://hdl.handle.net/1959.13/1490738
- Identifier
- uon:52978
- Identifier
- ISSN:0267-7261
- Language
- eng
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