Field Measurements of Landfill Surface Settlementsby Matthew E. Dodt, Neyer, Tiseo & Hindo Ltd, Farmington Hills, MI, USA,
Mark B. Sweatman, Neyer, Tiseo & Hindo Ltd, Farmington Hills, MI, USA,
Wayne R. Bergstrom, Neyer, Tiseo & Hindo Ltd, Farmington Hills, MI, USA,
Abstract: The Collier Road Landfill, located in southeast Michigan, has been accepting industrial and muncipal solid waste since the late 1960's. This existing landfill encompasses 72 acres (29. 1 ha) and was covered with 3 feet (0. 9 m) of compacted cohesive soil prior to 1985. During the period of January 1, 1985 to July 1, 1986, a 13-acre (5. 3 ha) expansion area on top of the landfill's sloped clay cover was utilized to dispose of additional solid waste. A leachate collection system consisting of a granular blanket and perforated pipe was placed on top of the existing clay cover in the expansion area prior to this additional landfilling. Settlement of the preexisting clay cover in the vicinity of the expansion area was monitored as fill was placed. The data indicate that the primary, load-related settlement occurs very rapidly but that long-term settlements may continue to be significant in magnitude. The data also indicate that the observed settlements occur over a large area, far beyond the area of direct, vertical loading.
Subject Headings: Landfills | Soil settlement | Compacted soils | Waste disposal | Solid wastes | Clays | Vertical loads | Solid mechanics | Michigan | North America | United States
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