A design chart for estimation of horizontal displacement in municipal landfills |
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Authors: | M.K. Singh J.S. Sharma I.R. Fleming |
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Affiliation: | 1. Optimisation of Production Systems Laboratory, Mechanical Engineering Department, Piraeus University of Applied Sciences, 250 P. Ralli and Thivon Av., 122 44 Athens Greece;2. Soft Energy Applications and Environmental Protection Laboratory Mechanical Engineering Department, Piraeus University of Applied Sciences, 250 P. Ralli and Thivon Av., 122 44 Athens Greece |
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Abstract: | This paper describes the development of a design chart for the estimation of maximum horizontal displacement within a municipal landfill using the height and the side slope of the landfill. The design chart is based on the results of a finite element parametric study in which the behaviour of the municipal solid waste (MSW) was modeled using a non-linear elastic hyperbolic model. The model input parameters, i.e. non-linear stiffness, shear strength and unit weight of MSW, were obtained from laboratory testing data and an extensive stochastic numerical modelling exercise. Non-linear variations of unit weight as well as Young’s modulus of MSW with depth were incorporated in the finite element analyses. The validity of the design chart was assessed using field monitoring results from a large landfill located in Ontario, Canada. |
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