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Permeable piles: An alternative to improve the performance of driven piles |
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| Institution: | 2. Institut National de la Recherche Scientifique, Centre Eau Terre Environnement (INRS-ETE), Québec, Québec, Canada;3. École Polytechnique de Montréal, Département des Génies Civil, Géologique et des Mines (CGM), Montréal, Québec, Canada;4. Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, Québec, Canada |
| Abstract: | This paper investigates the soil displacements and excess pore pressures induced by driven piles using a combined 3D finite and infinite element approach. The analyses are compared with analytical evaluations and field measurements. Consolidation analysis is conducted to illustrate the variation in pore pressure with time. A technique of drilling drainage holes on the pipe pile is proposed in this paper to accelerate the dissipation of pore pressure to improve the performance of displacement piles. It has been noticed that optimal performance of piles can be obtained by assigning openings in piles within the bottom 50% of the pile length. |
| Keywords: | Finite elements Infinite elements Permeable piles Driven piles Pore water pressure Consolidation |
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