Determinação de parâmetros de resistência de resíduos sólidos urbanos por meio de retro-análises de testes em laboratório

• Autor(a) principal: Ribeiro, André Geraldo Cornelio
• Data de Publicação: 2007
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/3850
• topic: Resíduos sólidos urbanos; Resistência; Ensaio de laboratório; Municipal solid waste; Strength; Laboratory tests; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL::GEOTECNICA

The shortage of areas for municipal solid waste (MSW) disposition has been increasing every year, due to the great garbage volume generated daily. As a result it is necessary, frequently, to increase the storage capacity of existing landfills, or to dispose MSW in landfills already closed. Therefore, MSW slopes progressively higher have been used in sanitary landfills, worrying the design engineers with the stability of these slopes. Thus, it is of great importance to know, besides other mechanical properties, the strength parameters of MSW, which are essential for slope stability analyses. In this sense, the present work deals with the determination of municipal solid waste strength parameters, using large dimension tests. Initially, a short bibliographical revision on the subject is presented. Afterwards, it is described the two methodologies used for the parameters determination. First, a loading capacity tests were realized with a footing over MSW placed on concrete drainpipes having about 1,6 m of height and 1,0 m of diameter. Following, loading capacity tests were executed in vertical MSW slopes placed in a wood box with about 0,8 m of height, 0,8 m of width and 0,8 m of length. Finally, test results in the drainpipes and in the wood box are shown and discussed. The main conclusions are the influence of the MSW water content and specific weight in the strength parameters, and the recommended strength parameters values to be used in slope stability analysis.