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Waste Management & Research, Vol. 15, No. 6, 585-592 (1997)
DOI: 10.1177/0734242X9701500604

Design of Landfill Daily Cells to Reduce Cover Soil Use

Mark W. Milke

Department of Civil Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand

Daily cell design for a landfill is analysed from the viewpoint of minimizing the use of daily cover soil. The landfill's daily cell is idealized to be in the shape of a parallelopiped. To minimize cover soil use and for fixed values of the working face length, volume of refuse, and slope of compaction, the optimal ratio of length to height for the daily cell is found to be the slope gradient (horizontal to vertical). For this optimum ratio, an equation is provided relating the soil-to-refuse ratio to daily cell design parameters. For situations away from the optimum length-to-height ratio, an equation is provided to estimate the excess soil required. These equations can help designers evaluate tradeoffs when a designer attempts to minimize cover soil use. © 1997 ISWA

Key Words: Landfill design • daily cells • cover soil • optimization.


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