Foundation Problems In Sanitary Land Fills

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Abstract
Sanitary land fills in the past have utilized marginal or otherwise useless property for the disposal of solid waste. The growing scarcity of building sites close to cities combined with the increasing volume of wastes will make it imperative to use sanitary land fills for future buildings. Unfortunately, the fills are weak, compressible, and they continue to deteriorate chemically and biologically. Building foundations suffer from punching into the fill and from erratic consolidation settlement. Decay and decomposition produce further settlement and sometimes noxious gases. Construction of foundations through the fill is difficult and expensive. More effective utilization is possible if the fill is planned for future buildings. The materials of highest density and resistance to breakdown should be segregated on the future building sites. These should be highly compacted, and possibly surcharged to increase strength and reduce compressibility. The structures must be designed to absorb settlement or to be supported on piles or piers. They must be designed to resist the corrosion and gases inherent in the fills.

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