Assessing the impact of vertical heat exchangers on the response of a retaining wall
File(s)
Published version
Author(s)
Sailer, Eleonora
Taborda, David MG
Zdravkovic, Lidija
Potts, David M
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.
Date Issued
2019-06-25
Date Acceptance
2019-06-01
Citation
E3S Web of Conferences, 2019, 92
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/).
License 4.0 (http://creativecommons.org/licenses/by/4.0/).
Sponsor
Department of Civil and Environmental Engineering
Geotechnical Consulting Group
Grant Number
CISM_P60087
Source
7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
Publication Status
Published
Start Date
2019-06-26
Coverage Spatial
Glasgow, UK
Date Publish Online
2019-06-25