Location

Arlington, Virginia

Session Start Date

8-11-2008

Session End Date

8-16-2008

Abstract

Documented case histories are perhaps even more essential to the practice of landfill engineering than to other aspects of geotechnical practice. Case histories are particularly important to landfill engineering because of difficulties in sampling and testing representative materials and the non-homogeneous nature of many landfills. Case histories play an essential role in the evaluation of static and dynamic properties of waste, in identifying potential performance problems and failure mechanisms, and in demonstrating that laboratory interface shear testing can be relied upon to predict field behavior of liner and cover systems. Case histories have proven to be essential in establishing appropriate values for municipal solid waste unit weight and shear strength as well as its stiffness and hysteretic damping under cyclic loads. A case history helped establish the importance of interface shear strength to the stability of lined landfills and two recent case histories have identified landfill gas-pore water pressure interaction as a potential failure mechanism in wet landfills. Case histories also play an important role in facilitating the post-closure development of landfill sites, a sustainable development practice, by demonstrating that closed landfill sites can be put to beneficial reuse while protecting human health, protecting and in many cases enhancing the environment, and providing social benefits.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Sixth Conference

Publisher

Missouri University of Science and Technology

Publication Date

8-11-2008

Document Version

Final Version

Rights

© 2008 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Aug 11th, 12:00 AM Aug 16th, 12:00 AM

The Indispensable Role of Case Histories in Landfill Engineering

Arlington, Virginia

Documented case histories are perhaps even more essential to the practice of landfill engineering than to other aspects of geotechnical practice. Case histories are particularly important to landfill engineering because of difficulties in sampling and testing representative materials and the non-homogeneous nature of many landfills. Case histories play an essential role in the evaluation of static and dynamic properties of waste, in identifying potential performance problems and failure mechanisms, and in demonstrating that laboratory interface shear testing can be relied upon to predict field behavior of liner and cover systems. Case histories have proven to be essential in establishing appropriate values for municipal solid waste unit weight and shear strength as well as its stiffness and hysteretic damping under cyclic loads. A case history helped establish the importance of interface shear strength to the stability of lined landfills and two recent case histories have identified landfill gas-pore water pressure interaction as a potential failure mechanism in wet landfills. Case histories also play an important role in facilitating the post-closure development of landfill sites, a sustainable development practice, by demonstrating that closed landfill sites can be put to beneficial reuse while protecting human health, protecting and in many cases enhancing the environment, and providing social benefits.