Abstract
The increasing demand of engineering landfills requires that designers propose a framework for landfill design, construction, repair and maintenance. As municipal solid waste (MSW) is a major part of a landfill, the analysis should consider MSW mechanical behavior using a constitutive model. To investigate this, 18 direct shear (DS) and triaxial (TX) tests were conducted on MSW samples with different fiber contents. Different shearing mechanisms lead to understand effects of fibers on stress–strain response. Based on obtained results the hyperbolic model Duncan and Chang (J Soil Mech Found Div 96(5):1629–1653, 1970) has been employed to simulate the TX results indicating the ability of the model to predict stress–strain behavior of MSW. This model could also be employed to the DS test results with some assumptions. The model can capture DS stress–strain response well whereas for TX tests the predictions were just enough. The experimental results and two sets of proposed MSW parameters of hyperbolic model have been compared and discussed.
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Acknowledgement
The corresponding author would like to thank Imam Reza for his kindly help. The writers are grateful to Arad Kouh complex waste process and disposal site for their help in collecting samples.
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Asadi, M., Shariatmadari, N., Karimpour-Fard, M. et al. Validation of Hyperbolic Model by the Results of Triaxial and Direct Shear Tests of Municipal Solid Waste. Geotech Geol Eng 35, 2003–2015 (2017). https://doi.org/10.1007/s10706-017-0223-y
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DOI: https://doi.org/10.1007/s10706-017-0223-y