Vertical vibration of rigid strip footings on poroelastic soil layer of finite thickness

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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