Location

New York, New York

Date

15 Apr 2004, 7:00pm - 8:30pm

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

Meeting Name

5th Conference of the International Conference on Case Histories in Geotechnical Engineering

Publisher

University of Missouri--Rolla

Document Version

Final Version

Rights

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

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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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.