Assessing the impact of vertical heat exchangers on the response of a retaining wall

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Title: Assessing the impact of vertical heat exchangers on the response of a retaining wall
Authors: Sailer, E
Taborda, DMG
Zdravkovic, L
Potts, DM
Item Type: Conference Paper
Abstract: Shallow geothermal energy systems, e.g. borehole heat exchangers or thermo-active structures, provide sustainable space heating and cooling by exchanging heat with the ground. When installed within densely built urban environments, the thermo-hydro-mechanical (THM) interactions occurring due to changes in ground temperature, such as soil deformation and development of excess pore water pressures, may affect the mechanical behaviour of adjacent underground structures. This paper investigates the effects of vertical heat exchangers installed near a deep basement by performing fully coupled THM finite element analyses using the Imperial College Finite Element Program. Different heat exchanger configurations are considered and their influence on the response of the basement wall is assessed in two-dimensional plane strain analyses, where different methods of modelling the heat sources in this type of analysis are employed to evaluate their effect on the temperature field and the non-isothermal soil response.
Issue Date: 25-Jun-2019
Date of Acceptance: 1-Jun-2019
URI: http://hdl.handle.net/10044/1/72554
DOI: https://doi.org/10.1051/e3sconf/20199216001
ISSN: 2267-1242
Publisher: EDP Sciences
Journal / Book Title: E3S Web of Conferences
Volume: 92
Copyright Statement: © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
Sponsor/Funder: Department of Civil and Environmental Engineering
Geotechnical Consulting Group
Funder's Grant Number: CISM_P60087
Conference Name: 7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
Publication Status: Published
Start Date: 2019-06-26
Conference Place: Glasgow, UK
Open Access location: https://www.e3s-conferences.org/articles/e3sconf/abs/2019/18/e3sconf_isg2019_16001/e3sconf_isg2019_16001.html
Online Publication Date: 2019-06-25
Appears in Collections:Civil and Environmental Engineering
Geotechnics



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