Finite Element Analysis of Piles in Expansive Media

by Joram M. Amir, (M.ASCE), Consulting Engr.; Tel-Aviv, Israel,
Mordechai Sokolov, Sr. Lect.; School of Engrg., Tel-Aviv Univ., Tel-Aviv, Israel,

Serial Information: Journal of the Geotechnical Engineering Division, 1976, Vol. 102, Issue 7, Pg. 701-719

Document Type: Journal Paper


A two-dimensional finite element model was developed to simulate piles in expansive media. Both flow and elastic behavior were assumed linear, and environmental effects were represented by a sinusidal moisture flux function. Volume changes of the soil caused all piles to move, but displacements were smaller for deeper piles and piles with heads laterally-fixed. Bells and isolation sleeves showed only a minor effect, while impervious peripheral membranes, beneficial for shallow footings, may increase the displacements of piles.

Subject Headings: Finite element method | Two-dimensional models | Piles | Displacement (mechanics) | Simulation models | Linear flow | Elastic analysis | Linear functions

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