THM analysis of compacted clay liner response to baled municipal waste

Matteo Ciantia, Marcos Arroyo, Andreu Isus

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Heat is generated in municipal waste containment facilities due to the chemical and biochemical evolution of waste. Sometimes it is required to check if the level of heat generated during the deposit lifetime may damage or reduce the isolating properties of the liners. That verification relies on appropriate evaluation of heat and moisture transfer through the barrier as well as the evolution of stress fields. This paper presents an example of such verification based on a coupled thermo-hydro-mechanical (THM) analysis for the case of a compacted clay liner designed to isolate a deposit of baled municipal waste. The evaluation of the different boundary conditions for the analysis is discussed in detail. The case study corresponds to a deposit of baled waste and the evaluation of thermal loadings on the lining is performed using thermal discrete elements.
Original languageEnglish
Title of host publicationProceedings of the 2nd Symposium on Coupled Phenomena in Environmental Geotechnics (CPEG2), Leeds, UK 2017
Publication statusPublished - 2017
EventSecond International Symposium on Coupled Phenomena in Environmental Geotechnics - University of Leeds, Leeds, United Kingdom
Duration: 6 Sep 20177 Sep 2017
https://engineering.leeds.ac.uk/info/201479/conferences/209/international_symposium_on_coupled_phenomena_in_environmental_geotechnics

Conference

ConferenceSecond International Symposium on Coupled Phenomena in Environmental Geotechnics
Abbreviated titleCPEG2
CountryUnited Kingdom
CityLeeds
Period6/09/177/09/17
Internet address

Keywords

  • municipal waste
  • compacted clay liners
  • T-H-M
  • Desiccation cracking
  • DEM

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