Publication Abstract

Proceedings - Fifth International Conference & Exhibition on Piling and Deep Foundations, 1994, Bruges, Belgium, (DFI)

Design & construction considerations for piles in landfills
E.E. Rinne, R.J. Dunn & M. Majchrzak

Pile foundations for structures sited over landfills require detailed attention to environmental, foundation performance and construction considerations unique to the nature of landfill materials. Utilizing the authors' experience with projects in the San Francisco area, a number of these issues are reviewed. Environmental issues include theh effect of piles on leachate containment, ground water quality and methane gas mitigation. These issues require considerable interaction with regulatory agencies to gain project approval. The very large magnitude of future settlement at many landfills amplifies the problem of accommodating this settlement with a non-settling, pile-supported structure, and also has implications regarding the seismic resistance of the pile foundation system. Downdrag and corrosion problems also require detailed attention. Methods for downdrag reduction and corrosion resistance are discussed as well as obstructions, pre-drilling and handling pre-drilling spoils.

 article #789; publication #36 (IC-1994)