2020 Volume 13 Issue 1 Pages 2-11
The increasing natural disasters occurrence in Brazil is an inevitable issue to provide worthy urban settlements. The Programa de Aceleração do Crescimento (Growth Acceleration Program, better knowns as PAC ) actions have been supported by Brazil's Federal Government since 2007 aiming landslides risks prevention and mitigation. This actions support municipalities in elaboration of risk mapping, and the planning and execution of retaining structural works on the slopes. The purpose of this case study is to test and evaluate the flowchart for typology work selection for slope stabilization, which was designed from a partnership between Japan International Cooperation Agency (JICA) and the Brazilian Ministry of Cities as part of the “Manual for Elaboration of Structural Intervention Plans for Mass Movement”, in the GIDES (Strengthening National Strategy of Integrated Natural Disaster Risk Management) Project framework, obtaining the information from the executive projects reports of the works in the municipalities of Nova Friburgo, State of Rio de Janeiro (RJ), and Salvador, State of Bahia (BA). It was observed in the case study that the flowchart leads to solutions that are similar to what the executive projects had pointed out, such as : retaining structures ; slope surface protection ; and surface drainage. The work in Nova Friburgo was designed and executed to utilize deep subsurface horizontal drainage (PH drains), however when using the flowchart was not observed in the application of this result, due to groundwater level (G. W. L.) absence. The flowchart is an appropriate tool for the geotechnical solution for slope stabilization definition and selection against landslides.
