Gest?o operacional das barragens de terra do complexo miner?rio das minas de ferro Caraj?s da VALE.

Programa de P?s-Gradua??o em Engenharia Geot?cnica. N?cleo de Geotecnia, Escola de Minas, Universidade Federal de Ouro Preto.O objetivo desta disserta??o ? analisar o uso do sistema de gest?o de barragens de aterro compactado, utilizados pela VALE, e por outras empresas do grupo, no Complexo Miner?rio das Minas de Ferro Caraj?s localizado em Parauapebas ? PA. O estudo foi desenvolvido atrav?s da avalia??o dos dois sistemas (programas computacionais) de gest?o de opera??o de barragens, os chamados Geobarragem e SGBP, ambos usados pela VALE no Complexo Caraj?s. Priorizou-se a utiliza??o de m?todos anal?ticos de investiga??o de cinco estudos casos de barragens que comp?em o referido complexo. Para tanto foram utilizados os m?todos de pesquisa bibliogr?fica diagn?stica e pesquisa de campo explorat?ria, com an?lise dos resultados sob o enfoque da pesquisa qualitativa e quantitativa e da observa??o participante do autor da disserta??o em todas as etapas de implementa??o dos dois sistemas de gest?o no Complexo Caraj?s. Conclui-se que os programas produzem resultados bastante satisfat?rios permitindo a gera??o de relat?rios sucintos para aprecia??o do propriet?rio e relat?rios detalhados para orienta??o dos trabalhos do corpo t?cnico. Estas ferramentas de gest?o permitem ainda oferecer uma melhor transpar?ncia das atividades de gest?o das barragens, para a sociedade.The aim of this dissertation is to analyze the management system of compacted embankment dams, used by Vale and other group companies in the Caraj?s Iron Mining Complex located in Parauapebas - PA. The study was conducted by evaluating two systems (computer programs) developed for the dam's operations management, called Geobarragem and SGBP respectively, both used by Vale in the Carajas Complex. Priority was given to the use of analytical methods in the investigations of five case studies of dams which are part of the complex. To this end two methods were used, the so called bibliographic diagnostic research and exploratory field research. The results were analyzed focusing both qualitative and quantitative research which was developed personally by the author at all stages of implementation of both management systems at the Caraj?s complex. It was concluded that the programs give satisfactory results allowing the generation of concise reports for the benefit of the owner and detailed reports for the technical staff. These management tools also provide information that helps the communication of dam management activities to the community at large