This contribution describes a preliminary parametric analysis of the factors affecting the pull-out resistance of screw-piles in undrained conditions. The numerical simulations rely on the Particle Finite Element method, a method known for its capabilities to tackle large deformations and rapid changing boundaries at large strains. A total stress analysis –assuming a quasi-incompressible elastic model along with a Tresca plastic model- is used to simulate the clayey soil behavior. Contact constraints are imposed to the solution with a penalty approach. As a first step, a two-dimensional geometry is used and the pile resistance to pullout and penetratoin is assessed.
|Title of host publication||ISSPEA 2019:|
|Subtitle of host publication||1st International Symposium on Screw Piles for Energy Applications|
|Editors||C. Davidson, M. J. Brown, J. A. Knappett, A. J. Brennan, C. Augarde, W. Coombs, L. Wang, D. Richards, D. White, A. Blake|
|Place of Publication||Dundee|
|Publisher||University of Dundee|
|Number of pages||6|
|Publication status||Published - 27 May 2019|