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This article in JEQ

  1. Vol. 22 No. 2, p. 217-226
     
    Received: Apr 27, 1992
    Published: Apr, 1993


    * Corresponding author(s):
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doi:10.2134/jeq1993.00472425002200020001x

Compacted Soil Barriers at Abandoned Landfill Sites are Likely to Fail in the Long Term

  1. Glenn W. Suter *,
  2. Robert J. Luxmoore and
  3. Ellen D. Smith
  1. Environ. Sci. Div., Oak Ridge National Lab., P.O. Box 2008, Oak Ridge, TN 37831.

Abstract

Abstract

At innumerable sites in the USA and around the world, buried waste has been isolated from the environment by barriers constructed entirely or in part of compacted soil. The chief concern in barrier design has been to isolate the waste in the short term by preventing movement of water into and through the waste. However, in the long term a variety of mechanisms can act to compromise this isolation. The mechanisms of long-term failure include initial flaws in barrier construction, shrink-swell cycles, freeze-thaw cycles, erosion, subsidence, root intrusion, and animal intrusion. Evidence for action of all of these mechanisms is summarized. The likelihood of long-term failure suggests that either perpetual care must be provided for buried hazardous wastes, or the waste sites must be designed to withstand long-term threats to barrier integrity.

Publication no. 4045, Environ. Sci. Div., ORNL. Managed by Martin Marietta Energy Systems, Inc., under Contract no. DE-AC05-84OR21400 with the U.S. Dep. of Energy.

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