A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The paper presents investigations on the water balance of an earth fill built of organic clay in humid climate. As the organic soil used for the fill contains geogenetically elevated concentrations of arsenic, particular attention is paid on the seepage flow through the fill. The test fill is 5 m high, 30 m long and 25 m wide. The fill consists of the organic clay compacted at water contents wet and dry of Proctor Optimum covered by a drainage mat and a 60 cm thick top layer. For the determination of the water balance extensive measuring systems were installed. The seepage at the bottom measured so far was less than 0.5 % of the precipitation. The interflow in the drainage mat above the compacted organic clay was of similar magnitude. The estimated evapotranspiration reached approx. 92 % of the precipitation. According to these measurements the percolation is much lower than the percolation of many landfill covers in humid climates.
The paper presents investigations on the water balance of an earth fill built of organic clay in humid climate. As the organic soil used for the fill contains geogenetically elevated concentrations of arsenic, particular attention is paid on the seepage flow through the fill. The test fill is 5 m high, 30 m long and 25 m wide. The fill consists of the organic clay compacted at water contents wet and dry of Proctor Optimum covered by a drainage mat and a 60 cm thick top layer. For the determination of the water balance extensive measuring systems were installed. The seepage at the bottom measured so far was less than 0.5 % of the precipitation. The interflow in the drainage mat above the compacted organic clay was of similar magnitude. The estimated evapotranspiration reached approx. 92 % of the precipitation. According to these measurements the percolation is much lower than the percolation of many landfill covers in humid climates.
Water Balance of an Earth Fill Built of Slightly Contaminated Organic Clay
GeoCongress 2012 ; 2012 ; Oakland, California, United States
GeoCongress 2012 ; 3457-3466
2012-03-29
Conference paper
Electronic Resource
English
Water Balance of an Earth Fill Built of Slightly Contaminated Organic Clay
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