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Alessandro Francesco Rotta Loria

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Publications associées (39)

Serviceability assessment of energy pile groups through design charts

Lyesse Laloui, Alessandro Francesco Rotta Loria

The estimation of the vertical displacement of energy pile groups subjected to thermal (and mechanical) loads is needed for a complete geotechnical and structural design of the piles in situations where these foundations may be located sufficiently close t ...

2017

Impact of thermally induced soil deformation on the serviceability of energy pile groups

Lyesse Laloui, Alessandro Francesco Rotta Loria

This paper expands on the impact of the thermally induced deformation of the soil on the serviceability mechanical performance (i.e., deformation-related) of energy pile groups. The work is based on the results of a full-scale in-situ test that was perform ...

2017

Thermally induced group effects among energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

The behaviour of conventional pile groups (e.g., closely spaced) that are subjected to mechanical loads has been shown to be different than the behaviour of single isolated piles. The so-called group effects are responsible for this behaviour and must be c ...

2017

Recent development in the multiphysical analysis and design of energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study proposes an analysis of the multiphysical phenomena governing the thermo-mechanical behaviour of energy piles. The analysis is based on the results of a series of full-scale in-situ tests, laboratory experiments and numerical analyses. First, th ...

2017

The equivalent pier method for energy pile groups

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study presents a method for estimating the average vertical displacement of energy pile groups subjected to thermal loads. The method consists of replacing any regular energy pile group with a single equivalent pier of the same length and an equivalen ...

2017

Displacement interaction among energy piles bearing on stiff soil strata

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study presents an analysis of the displacement interaction among general configurations of energy piles bearing on stiff soil strata that are subjected to thermal loads. This work integrates recent analyses investigating the displacement interaction a ...

Elsevier2017

Multiphysical phenomena and mechanisms involved with energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study proposes an analysis of the multiphysical phenomena and mechanisms governing the thermo-mechanical behaviour of energy piles. The analysis is based on the results of a series of full-scale in-situ tests, laboratory experiments and numerical anal ...

2016

Analysis of thermally induced mechanical interactions in energy pile groups

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study investigates the thermally induced mechanical interactions among closely spaced energy piles that partially operate as geothermal heat exchangers over a time-scale that is typical of practical applications. The analysis is based on the results o ...

CRC Press2016

Numerical study of the response of a group of energy piles under different combinations of thermo-mechanical loads

Lyesse Laloui, Alice Di Donna, Alessandro Francesco Rotta Loria

Energy piles are rapidly gaining acceptance around the world because they represent a renewable and clean source of energy that can be used for the heating and cooling of buildings, and the de-icing of infrastructures. This technology couples the structura ...

Elsevier2016

Geotechnical analysis of energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

2016

The role of thermally induced soil deformation on the serviceability of energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

This paper investigates the impact of the thermally induced deformation of soil on the serviceability mechanical performance (i.e., deformation-related) of energy pile groups. The work is based on the results of a full-scale in-situ test that was performed ...

2016

The interaction factor method for energy pile groups

Lyesse Laloui, Alessandro Francesco Rotta Loria

Prior to this study, no simplified yet rational methods were available for estimating the vertical displacements of energy pile groups subjected to thermal loads. Observing such a challenge, the goal of this study has been threefold: (i) to extend the inte ...

Elsevier2016

Numerical modelling of energy piles in saturated sand subjected to thermo-mechanical loads

Lyesse Laloui, Chao Shi, Alessandro Francesco Rotta Loria

This study investigates the impact that different magnitudes and combinations of thermal and axial mechanical loads have on the mechanical behaviour of energy piles in saturated sand. The work is based on the results of a series of thermo-hydro-mechanical ...

2015

The role of null point movements on the thermo-mechanical analysis of energy piles

Lyesse Laloui, Alessandro Francesco Rotta Loria

2015

Numerical study on the suitability of centrifuge testing for capturing the thermal-induced mechanical behavior of energy piles

Lyesse Laloui, Alice Di Donna, Alessandro Francesco Rotta Loria

Currently, the suitability of centrifuge testing for capturing the thermal-induced mechanical behavior of full-scale energy piles has not been established, yet, despite their increasing worldwide development. Looking at this challenge, this paper investiga ...

American Society of Civil Engineers2015

Energy and geotechnical behaviour of energy piles for different design solutions

Lyesse Laloui, Alessandro Francesco Rotta Loria, Niccolò Batini

Energy piles are heat capacity systems that have been increasingly exploited to provide both supplies of energy and structural support to civil structures. The energy and geotechnical behaviours of such foundations, which are governed by their response to ...

Elsevier2015

Predicting the axial capacity of piles in sand

Jean-Marie Fuerbringer, Lyesse Laloui, Luis Felipe Orellana Espinoza, Alessandro Francesco Rotta Loria, Alberto Minardi

Currently, although several tools have been proposed for the numerical modelling of the pile-soil interface, there is not a well-established framework concerning the quantitative impact that different estimations of the mechanical properties of this settin ...

Elsevier2015

Numerical study on the thermo-mechanical interactions of a group of energy piles under cooling loads

Lyesse Laloui, Alessandro Francesco Rotta Loria

2015

Thermo-mechanical analysis of energy piles through numerical and centrifuge tests

Lyesse Laloui, Alessandro Francesco Rotta Loria

2015

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