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Apr 26, 2012
Determination of Shear Strength Parameters of Municipal Solid Waste (MSW) by Means of Static Plate Load Tests
Authors: T. O. Campi [email protected] and M. E. G. Boscov, D.Sc. [email protected]Author Affiliations
Publication: Geo-Frontiers 2011: Advances in Geotechnical Engineering
Abstract
Stability analysis for MSW landfills is based on limit equilibrium methods of general use in Geotechnics, in spite of the fact that rheological behavior of MSW is different from that of typical soils: stress-strain curves show an increase of strength without the occurrence of failure within the normal range of strain levels of shear strength tests, and shear strength and deformability parameters alter along time. Furthermore, there is the additional problem of the representativeness of waste samples for laboratory tests. This paper proposes to evaluate strength parameters of MSW by means of in-situ static load plate tests carried out in a sanitary landfill in the metropolitan region of Sao Paulo, Brazil, and Terzaghi's formulation for ultimate bearing capacity of direct shallow foundations. Cohesion-friction angle curves for different strain levels obtained by analysis of in-situ tests are presented and discussed.
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© 2011 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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M.Sc. Student, CETESB — Companhia Ambiental do Estado de São Paulo, Av. Prof. Frederico Hermann Junior 345, Alto de Pinheiros, Sao Paulo, SP, Brazil, 05459-900.E-mail: [email protected]
University of Sao Paulo, Escola Politecnica, Engenharia Civil, Av. Prof. Almeida Prado trav.2 n. 271, Butanta, Sao Paulo, SP, Brazil, 05508-970.E-mail: [email protected]
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