Numerical evaluation of group-pile foundation subjected to cyclic horizontal load

Abstract

In this paper, three-dimensional (3D) finite element analyses of a real-scale group-pile foundation subjected to horizontal cyclic loading are conducted using a program named DBLEAVES. In the simulations, nonlinear behaviors of ground and piles are described by subloading t ij model and the axial-force dependent model (AFD model) which considered the axial-force dependency in the nonlinear moment-curvature relations. In order to consider the influence of an effective stress path on the prediction of the group-pile foundation, the analyses are conducted within the framework of the soil-water coupling method with finite-difference and finite-element regime. The material parameters of soils are determined based on conventional triaxial drained compression tests on undisturbed and remolded specimens. The applicability of the proposed numerical method is encouraging, and therefore, it is quite confident to say that the method can be used to predict the mechanical behaviors of group-pile foundation to a satisfactory accuracy, particularly with the effective stress analysis.

Fully Buried Pipeline Floatation in Poro-Elastoplastic Seabed under Combined Wave and Current Loadings

“…On the basis of the FE-FD hybrid scheme, Ye et al [35] created a program called DBLEAVES, which conducts finite element analysis in both 2D and 3D for static and dynamic scenarios. Subsequently, numerous studies have confirmed the program's precision and usefulness [34,[37][38][39]43].…”

Seismic response of a motorway bridge founded in an active landslide: a case study

“…Among the methodologies developed the to study the multiple-hazard seismic soil-foundation one could mention analytical solutions (Di Laora et al 2017;Elahi et al 2010;Gazetas et al 1993;Wen et al 2015), numerical studies (Barla 2018;Jin et al 2010;Kourkoulis et al 2010;Luo et al 2019;Uzuoka et al 2007), and 1-g seismic and centrifuge experiments (Wang and Zhang 2014;Yan et al 2020). To mitigate landslide risk and protect the affected infrastructure, the use of stabilising piles and deep foundations has been examined by (He et al 2015;Kanagasabai et al 2011;Kourkoulis et al 2011Kourkoulis et al , 2012Yu et al 2015).…”