Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay

Yue Ouyang, Loizos Pelecanos, Kenichi Soga

Research output: Contribution to conferencePaper

Abstract

Geothermal energy attracted considerable attention over the past years, as it has been considered as a green, renewable and sustainable energy source. Several attempts were made to use existing infrastructure to extract it with minimum amount of additional construction cost, such as foundation piles. This, however, raises issues regarding the thermal degradation of material properties and hence structural integrity. This paper presents a practical approach to modeling thermo-mechanical soil-structure interaction using loadtransfer analysis and then shown an application to a recent thermal response test of a cement column buried in London Clay. The proposed model was able to reproduce the observed field behavior including the formation of thermal tensile cracks and it is therefore considered appropriate for future modeling of such thermomechanical soil-structure interaction problems.
Original languageEnglish
Publication statusPublished - Jun 2018
Event9th European Conference on Numerical Methods in Geotechnical Engineering - Porto, Portugal
Duration: 25 Jun 2018 → …
http://www.numge2018.pt/

Conference

Conference9th European Conference on Numerical Methods in Geotechnical Engineering
CountryPortugal
CityPorto
Period25/06/18 → …
Internet address

Fingerprint

Soil structure interactions
Cements
Clay
Pile foundations
Geothermal energy
Structural integrity
Materials properties
Pyrolysis
Cracks
Costs
Hot Temperature

Cite this

Ouyang, Y., Pelecanos, L., & Soga, K. (2018). Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.

Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay. / Ouyang, Yue; Pelecanos, Loizos; Soga, Kenichi.

2018. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.

Research output: Contribution to conferencePaper

Ouyang, Y, Pelecanos, L & Soga, K 2018, 'Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay' Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal, 25/06/18, .
Ouyang Y, Pelecanos L, Soga K. Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay. 2018. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.
Ouyang, Yue ; Pelecanos, Loizos ; Soga, Kenichi. / Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.
@conference{960487e7f1d84aecbd27395d7572ae6c,
title = "Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay",
abstract = "Geothermal energy attracted considerable attention over the past years, as it has been considered as a green, renewable and sustainable energy source. Several attempts were made to use existing infrastructure to extract it with minimum amount of additional construction cost, such as foundation piles. This, however, raises issues regarding the thermal degradation of material properties and hence structural integrity. This paper presents a practical approach to modeling thermo-mechanical soil-structure interaction using loadtransfer analysis and then shown an application to a recent thermal response test of a cement column buried in London Clay. The proposed model was able to reproduce the observed field behavior including the formation of thermal tensile cracks and it is therefore considered appropriate for future modeling of such thermomechanical soil-structure interaction problems.",
author = "Yue Ouyang and Loizos Pelecanos and Kenichi Soga",
year = "2018",
month = "6",
language = "English",
note = "9th European Conference on Numerical Methods in Geotechnical Engineering ; Conference date: 25-06-2018",
url = "http://www.numge2018.pt/",

}

TY - CONF

T1 - Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay

AU - Ouyang, Yue

AU - Pelecanos, Loizos

AU - Soga, Kenichi

PY - 2018/6

Y1 - 2018/6

N2 - Geothermal energy attracted considerable attention over the past years, as it has been considered as a green, renewable and sustainable energy source. Several attempts were made to use existing infrastructure to extract it with minimum amount of additional construction cost, such as foundation piles. This, however, raises issues regarding the thermal degradation of material properties and hence structural integrity. This paper presents a practical approach to modeling thermo-mechanical soil-structure interaction using loadtransfer analysis and then shown an application to a recent thermal response test of a cement column buried in London Clay. The proposed model was able to reproduce the observed field behavior including the formation of thermal tensile cracks and it is therefore considered appropriate for future modeling of such thermomechanical soil-structure interaction problems.

AB - Geothermal energy attracted considerable attention over the past years, as it has been considered as a green, renewable and sustainable energy source. Several attempts were made to use existing infrastructure to extract it with minimum amount of additional construction cost, such as foundation piles. This, however, raises issues regarding the thermal degradation of material properties and hence structural integrity. This paper presents a practical approach to modeling thermo-mechanical soil-structure interaction using loadtransfer analysis and then shown an application to a recent thermal response test of a cement column buried in London Clay. The proposed model was able to reproduce the observed field behavior including the formation of thermal tensile cracks and it is therefore considered appropriate for future modeling of such thermomechanical soil-structure interaction problems.

M3 - Paper

ER -