ESTIMATING HYDRAULIC CONDUCTIVITY OF COMPACTED CLAY LINERS. DISCUSSION AND CLOSURE

Two discussions of a paper with the aforementioned title by Benson, Zhai, and Wang, published in this journal (Volume 120, Number 2, February 1994), are presented. The first discussion begins with questions regarding the construction of the database and the compacting of clays at project sites at moisture contents below optimum. Basheer and Najjar further comment that the observed general decrease in hydraulic conductivity with increasing compactor weight should be linked to two parameters--molding water content and dry unit weight of compacted clay. The discussers suggest an alternative approach to the regression model presented, that is, neural networking. The second discussion focuses on the five criteria for determining hydraulic conductivity equal to or less than a certain value. Day states that compacted dry density and particle-size distribution are not included. Day also writes that compactor weight is a poor controlling variable during construction of soil liners. Discussions are followed by closure from the authors.

Language

  • English

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 675-678
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00711522
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 11 1995 12:00AM