Desenvolvimento de diretrizes para monitoramento geotécnico e plano de contingência/emergência em aterros sanitários

• Ano de defesa: 2010
• Autor(a) principal: Heuder Pascele Batista
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Resíduos sólidos urbanos; Plano de ações emergenciais; Plano de contingência; Monitoramento geotécnico; Aterros sanitários; Metodologia Delphi; Meio ambiente; Aterro sanitário; Resíduos sólidos; Engenharia sanitária; Saneamento
• Link de acesso: http://hdl.handle.net/1843/FRPC-8DQH33

A trend toward verticalization of sanitary landfills, especially in large cities, has been increasing, as well as the number of geotechnical accidents observed. These accidents can occur by natural causes, but in most cases they are related to inadequate design, absence or inefficiency of liquids and gases drainage systems, construction and operating problems and inexistence of environmental and geotechnical monitoring programs, which could help identifying unexpected behaviors. There are many papers describing geotechnical accidents in landfills, but reports of periodic inspections or the existence of emergency and contingency plans are hardly found. Different models of environmental, geotechnical and operational monitoring of landfills are expected and necessary, due to the particular characteristics of each project and site. Although literature presents a large number of works on inspections, risk assessments, emergency and contingency plans for industries and dams, the application of these concepts to landfills is still incipient. This work aims to identify the best practices for geotechnical monitoring of landfills and develop guidelines for inspection and emergency actions that can help to technicians and operators of landfills to design, operate, monitor, inspect and keep track in extreme situations. The Delphi methodology was used and questionnaires were sent to a group of experts, formed by researchers, consultants and operators of landfills. The questionnaire addressed the phases of a landfill and the parameters, methods and procedures related to them, asking respondents to indicate the importance of each item to medium and large landfills, in the current situation and the best practice that could be recommended. The results were statistically analyzed and after two rounds the consensus of opinion was reached. The results allowed drawing a diagnosis of the current situation regarding studies, projects and monitoring of medium and large landfills. Based on the results of the questionnaires analysis, guidelines for carrying out geotechnical monitoring programs and developing emergency and contingency plans of these projects were proposed.