Open AccessStability and second-order lateral stiffness of embedded piles with generalized end-boundary conditions on non-homogeneous soil
Author(s) -
Carlos A. Vega-Posada,
Jeisson Alejandro Higuita-Villa,
Julio C. Saldarriaga-Molina
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2047/1/012004
Subject(s) - pile , buckling , structural engineering , stiffness , homogeneity (statistics) , boundary value problem , parametric statistics , geotechnical engineering , homogeneous , transverse plane , geology , engineering , materials science , mathematics , mathematical analysis , statistics , combinatorics
This paper presents a simplified analytical method to conduct elastic stability and second-order lateral sti˙ness analysis of piles embedded in a two-parameter elastic soil. This work is an extension to a work recently presented by the first author, but here, the emphasis is given to study the e˙ect of end-boundary conditions and soil non-homogeneity on the pile’s buckling load and lateral sti˙ness. The proposed formulation includes the e˙ect of i) semi-rigid connections and lateral transverse springs at the ends of the pile, ii) an external transverse load acting along the pile, iii) soil non-homogeneity, and iv) the second-parameter of the elastic soil. The influence of the modulus of subgrade reaction, degrees of non-homogeneity, and intermediate end-boundary conditions on the pile response are investigated via a parametric study. The proposed solution can be employed to perform either lateral deformation or elastic buckling analysis.