Title :

Centrifuge study of a reduced model of a geothermal pile loaded horizontally

Author(s) :

Khamis, Eva [Auteur]
Laboratoire Centrifugeuses Géotechniques [GERS-CG]
Dubreucq, Thierry [Auteur]
Laboratoire Centrifugeuses Géotechniques [GERS-CG]
Blanc, Matthieu [Auteur]
Laboratoire Centrifugeuses Géotechniques [GERS-CG]
de Sauvage, Jean [Auteur]
Risque Rocheux et Ouvrages géotechniques [GERS-RRO]
Badinier, Thibault [Auteur]
Sols, Roches et Ouvrages Géotechniques [GERS-SRO]
Szymkiewicz, Fabien [Auteur]
Sols, Roches et Ouvrages Géotechniques [GERS-SRO]
Pereira, Jean-Michel [Auteur]
École nationale des ponts et chaussées [ENPC]
Laboratoire Navier [NAVIER UMR 8205]
Tang, Anh Minh [Auteur]
Laboratoire Navier [NAVIER UMR 8205]
École nationale des ponts et chaussées [ENPC]
Vasilescu, Roxana [Auteur]
Mroueh, Hussein [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]

Scientific editor(s) :

Miguel Angel Cabrera

Conference title :

5th European Conference on Physical Modelling in Geotechnics - ECPMG 2024

Conference organizers(s) :

DELTARES
TU Delft

City :

Delft

Country :

Pays-Bas

Start date of the conference :

2024-10-02

Book title :

Proceedings of the 5th ECPMG 2024

Publication date :

2024

English keyword(s) :

Geothermal piles
Physical modelling
Geothermal Energy
Horizontal loading
Thermal load

HAL domain(s) :

Sciences de l'ingénieur [physics]/Génie civil
Physique [physics]/Mécanique [physics]/Mécanique des structures [physics.class-ph]
Sciences de l'ingénieur [physics]/Génie civil/Géotechnique

English abstract : [en]

As part of the ANR "COOP" (Combined lOading Of energy Piles) project, the Geotechnical Centrifuge Laboratory at Gustave Eiffel University has studied the bending behaviour of a small geothermal pile, subjected to temperature ...
Show more >As part of the ANR "COOP" (Combined lOading Of energy Piles) project, the Geotechnical Centrifuge Laboratory at Gustave Eiffel University has studied the bending behaviour of a small geothermal pile, subjected to temperature cycles and horizontal head loading. It simulates a prototype pile 16 m long and 0.8 m in diameter. This study aims to predict the horizontal behaviour of reinforced concrete geothermal energy piles (GEPs) subject to lateral loads, followed by thermal loads with alternating heating and cooling cycles in saturated dense sand. The study examined three piles: a capacity pile to measure its ultimate load (Fu), a reference pile and an energy pile tested at 50% of Fu. A four-point bending test highlighted a low Young's modulus, confirming soft characteristics in the pile. Thermal loading led to significant displacement accumulation, potentially impacting both pile and soil properties. The study provided insights into failure characteristics and the impact of thermal loading on energy piles.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Pieux géothermiques sous sollicitations combinées

Collections :

• Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515

Source :

Harvested from HAL

Submission date :

2025-02-26T07:38:47Z