... Abstract The present work aims to study the characteristics related to the shape of the aggregates through the use of six different rocks, belonging to different geological provinces and distributed throughout the state of Rio Grande do Sul/Brazil, by means of laboratory tests widely performed...

... and the compactness of the rocks (Aktinson, 1993; Fiorentini, 2002; Back, 2015). rio grande sul fragment federal resistance deposit santa maria specification granulation reservoir characterization degradation mineral porto alegre departamento nacional ground transportation aggregate...

... Abstract The instability of rock slopes along highways is a major concern as it may result in economic losses, increase in maintenance cost and even fatalities. The BR-471 Highway is one of the most important roads in Rio Grande do Sul, Brazil. It connects the main agricultural areas...

...: Mina El Teniente in Chile, Rio Grande pumped storage project in Argentina, Nathpa Jhakri Hydroelectric project in Himachel Pradesh, India, Athens Metro in Greece and The Yacambú Quibor tunnel in Venezuela. The analysis of the support system was dictated by four geomechanical classifications (RSR, RMR...

... ABSTRACT: Quantities, longitudes and nominal support pressures of rock bolts installed in the Rio Grande underground excavations are analyzed in relation with the opening span and geotechnical quality of the rock mass. RESUME: Les quantites, les longuers et les pressions de support...