Location

New York, New York

Session Start Date

4-13-2004

Session End Date

4-17-2004

Abstract

The paper presents the results of a settlement-monitoring program for a preloaded roadway embankment over a closed landfill underlain by three compressible units: municipal solid waste, alluvial peat, and organic silt. To monitor the progression of embankment settlement and assess the effectiveness of the preload treatment, a field instrumentation system was installed within the embankment footprint. The field instrumentation system, consisting of settlement plates, and vertical extensometer and vibrating wire piezometer stations, was monitored prior to construction, during construction, and for approximately 18 months thereafter. The extensometer and piezometer stations provided information on the individual response characteristics of the compressible units to load application. The paper discusses the field settlement and piezometric data, and provides time-settlement relationships for the compressible units. Backcalculated compressibility parameters for landfill refuse are compared with those reported by other researchers for such materials. Application of hyperbolic methods for consolidation analysis is evaluated with respect to reliability as a tool for settlement predictions for similar preload procedures.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Fifth Conference

Publisher

University of Missouri--Rolla

Publication Date

4-13-2004

Document Version

Final Version

Rights

© 2004 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Apr 13th, 12:00 AM Apr 17th, 12:00 AM

Field Monitoring of the Compressibility of Municipal Solid Waste and Soft Alluvium

New York, New York

The paper presents the results of a settlement-monitoring program for a preloaded roadway embankment over a closed landfill underlain by three compressible units: municipal solid waste, alluvial peat, and organic silt. To monitor the progression of embankment settlement and assess the effectiveness of the preload treatment, a field instrumentation system was installed within the embankment footprint. The field instrumentation system, consisting of settlement plates, and vertical extensometer and vibrating wire piezometer stations, was monitored prior to construction, during construction, and for approximately 18 months thereafter. The extensometer and piezometer stations provided information on the individual response characteristics of the compressible units to load application. The paper discusses the field settlement and piezometric data, and provides time-settlement relationships for the compressible units. Backcalculated compressibility parameters for landfill refuse are compared with those reported by other researchers for such materials. Application of hyperbolic methods for consolidation analysis is evaluated with respect to reliability as a tool for settlement predictions for similar preload procedures.