Estabilidade nas estradas da Amazônia brasileira: um recorte da BR-010 no Estado do Pará

Roads stability on in the Brazilian Amazon: a section of BR-010 in the Pará of State

Abstract

In Brazil, road construction processes started in the 1930s but were intensified in the 1960s due to the projects of national integration. Building a road requires the application of various geotechnical solutions, among other studies, to ensure the correct execution of the project. Slopes are commonly deployed, particularly in regions of rugged terrain, presenting steep inclines and declines. In this research work, slopes six were analyzed along, approximately, 36 km of the BR-010 road, in the Paragominas and Ipixuna do Pará, municipalities of Pará State in Brazil. These presented values of safety factors within the recommended limits; however, erosion and mass movement problems occur in most of them. Hence, it is necessary to employ preventive treatment to avoid block falls and landslides that could obstruct the road causing traffic interruption, environmental and economic harm or, even worse, detriments to human lives.