Municipal Solid Waste Slope Failure. II: Stability Analyses

Analyses are presented to investigate the case of a large slope failure in a municipal solid waste (MSW) landfill that developed through the underlying native soil. The engineering properties of the waste and native soil are described in a companion paper by Eid et al. (2000). Some of the conclusion...

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Bibliographic Details
Published in:Journal of geotechnical and geoenvironmental engineering 2000-05, Vol.126 (5), p.408-419
Main Authors: Stark, Timothy D, Eid, Hisham T, Evans, W. Douglas, Sherry, Paul E
Format: Article
Language:English
Subjects:
Applied sciences
Blasting
Buildings. Public works
Exact sciences and technology
Excavation
Failure
Fracture mechanics
General treatment and storage processes
Geoenvironmental engineering
Geotechnics
Landfills
Pollution
Regulations
Settlements
Shear strength
Soil mechanics. Rocks mechanics
Solid wastes
Stability
Strain
TECHNICAL PAPERS
Wastes
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Summary:Analyses are presented to investigate the case of a large slope failure in a municipal solid waste (MSW) landfill that developed through the underlying native soil. The engineering properties of the waste and native soil are described in a companion paper by Eid et al. (2000). Some of the conclusions from this case history include (1) native colluvial residual soils in the Cincinnati area underlying MSW can mobilize a drained shear strength less than the fully softened value without recent evidence of previous sliding; (2) strain incompatibility and progressive failure can occur between MSW and underlying materials and cause a reduction in the mobilized shear strength; (3) a stability evaluation of interim slopes, especially when the slope toe will be excavated, blasting will be occurring, and waste placement continues at the top of slope, should be conducted, even though it may not be required by regulations; and (4) the reappearance of cracking at the top of an MSW landfill slope is probably an indication of slope instability and not settlement.
ISSN:1090-0241
1943-5606
DOI:10.1061/(ASCE)1090-0241(2000)126:5(408)