TY - GEN
T1 - The impact of degradation on MSW shear strength
AU - Kavazanjian, Edward
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Multiple lines of evidence are used to draw conclusions concerning the shear strength of degraded municipal solid waste (MSW). Interpretation of the accumulated evidence leads to the conclusion that for conventional "dry" landfills the shear strength envelopes commonly used in practice provide reasonable strength values for circular and non-horizontal failure surfaces even for old landfills where the waste may be in a relatively advanced state of degradation. However, for horizontal failure surfaces in conventional landfills that may not engage the fibrous waste components, for landfills where mechanical pre-processing has been used to reduce waste constituent size and facilitate degradation, and for bioreactor landfills, a strength envelope characterized by zero cohesion and an effective friction angle of 30 degrees appears to provide a conservative representation of degraded MSW shear strength. Copyright ASCE 2008.
AB - Multiple lines of evidence are used to draw conclusions concerning the shear strength of degraded municipal solid waste (MSW). Interpretation of the accumulated evidence leads to the conclusion that for conventional "dry" landfills the shear strength envelopes commonly used in practice provide reasonable strength values for circular and non-horizontal failure surfaces even for old landfills where the waste may be in a relatively advanced state of degradation. However, for horizontal failure surfaces in conventional landfills that may not engage the fibrous waste components, for landfills where mechanical pre-processing has been used to reduce waste constituent size and facilitate degradation, and for bioreactor landfills, a strength envelope characterized by zero cohesion and an effective friction angle of 30 degrees appears to provide a conservative representation of degraded MSW shear strength. Copyright ASCE 2008.
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U2 - 10.1061/40970(309)28
DO - 10.1061/40970(309)28
M3 - Conference contribution
AN - SCOPUS:66449103318
SN - 9780784409701
T3 - Geotechnical Special Publication
SP - 224
EP - 231
BT - Proceedings of Sessions of GeoCongress 2008 - GeoCongress 2008
T2 - GeoCongress 2008: Geotechnics of Waste Management and Remediation
Y2 - 9 March 2008 through 12 March 2008
ER -