Mechanical and Thermal DEM analyses of baled MSW storage

Marcos Arroyo, Matteo Ciantia

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

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Abstract

Municipal solid waste is sometimes stored in baled form either before or after treatment. General design requirements for MSW landfills, such as slope stability and lining long-term integrity are still relevant for bale fills and need to be checked by calculation. However, the large size of the bales presents some difficult problems for traditional analytical and numerical modelling approaches, such as the pervasive presence of bale-bale contact discontinuities within the MSW mass. On the other hand, the discrete element method offers a rather natural framework in which to analyse bale fills. In this communication we exemplify that approach by presenting two separate analysis of a baled fill using the discrete element method. The first analysis is a thermal analysis in which the heat generated by biological evolution of the baled waste is taken into account to assess the thermal evolution of the baled waste storage as construction proceeds. The second is a mechanical analysis in which overall stability of the baled MSW storage is assessed.

Original languageEnglish
Title of host publicationProceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
EditorsWoojin Lee, Jong-Sub Lee, Hyun-Ki Kim, Dong-Soo Kim
PublisherInternational Society for Soil Mechanics and Geotechnical Engineering
Pages3099-3102
Number of pages4
Volume2017-September
Publication statusPublished - 2017
Event19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of
Duration: 17 Sep 201722 Sep 2017

Conference

Conference19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
CountryKorea, Republic of
CitySeoul
Period17/09/1722/09/17

Keywords

  • municipal solid waste
  • thermal analysis
  • stability analysis
  • discrete element method

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