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Geomechanics and Long-Term Landfill Settlement

McDougall, John

Long term landfill settlement is commonly attributed to two phenomena: creep and biodegradation. Biodegradation, which may contribute the greater proportion of long-term settlement, is a function of a range of factors, many of which are not easily associated with conventional geomechanical analysis. A more fundamental treatment of biodegradation effects within the constitutive framework of a hydro-bio-mechanical (HBM) model is presented in this paper. The role of a decomposition-induced void volume change parameter Λ, and its ability to handle biodegradation-related settlement, are revealed through the simulation of a long-term, laboratory-scale waste settlement test.

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Geomechanics and Long-Term Landfill Settlement

McDougall, John

Long term landfill settlement is commonly attributed to two phenomena: creep and biodegradation. Biodegradation, which may contribute the greater proportion of long-term settlement, is a function of a range of factors, many of which are not easily associated with conventional geomechanical analysis. A more fundamental treatment of biodegradation effects within the constitutive framework of a hydro-bio-mechanical (HBM) model is presented in this paper. The role of a decomposition-induced void volume change parameter Λ, and its ability to handle biodegradation-related settlement, are revealed through the simulation of a long-term, laboratory-scale waste settlement test.

Geomechanics and Long-Term Landfill Settlement

McDougall, John

Long term landfill settlement is commonly attributed to two phenomena: creep and biodegradation. Biodegradation, which may contribute the greater proportion of long-term settlement, is a function of a range of factors, many of which are not easily associated with conventional geomechanical analysis. A more fundamental treatment of biodegradation effects within the constitutive framework of a hydro-bio-mechanical (HBM) model is presented in this paper. The role of a decomposition-induced void volume change parameter Λ, and its ability to handle biodegradation-related settlement, are revealed through the simulation of a long-term, laboratory-scale waste settlement test.

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Title:

Geomechanics and Long-Term Landfill Settlement

Contributors:

McDougall, John (author)

Conference:

GeoCongress 2008 ; 2008 ; New Orleans, Louisiana, United States

Published in:

GeoCongress 2008 ; 192-199

Publication date:

2008-03-07

ISBN:

DOI:

https://doi.org/10.1061/40970(309)24

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Recycling , Geotechnical engineering , Creep , Settlement , Waste management , Remediation , Landfills , Biological processes

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