A METODOLOGIA FMEA (FAILURE MODE AND EFFECTS ANALYSIS) APLICADA À GESTÃO DE RISCOS DE ESCORREGAMENTOS DE SOLO EM PORTO, PORTUGAL
FMEA (Failure Mode and Effects Analysis) methodology applied to the risk management of landslides in Porto, Portugal
DOI:
https://doi.org/10.5016/geociencias.v41i03.16411Abstract
The FMEA - Failure Mode and Effects Analysis methodology is cited in international risk management standards and with use already known in dams and industries in general, which, through the analysis of failure modes and their effects, aims to analyze risks before the events harmful to materialize. The main objective of this research is to propose and adapt the methodology for landslide risk management within the scope of the Civil Protection of Porto, Portugal, in order to allow for lesser discrepancies between evaluators and to encourage the discussion of risks as a team. For such, the following steps are proposed: i) definition of the slopes to be evaluated; ii) development of a field sheet for the analysis of hazards and consequences, attributing points to the indices according to their criticality; iii) risk analysis with definition of scenarios, and combination of hazard and consequences results in a matrix and informative table. Eight soil slopes with different degrees of risk were identified, and the results indicate the applicability of the FMEA method, especially when associated with the field record with quantitative indices, which minimizes discrepancies in the analyzes and facilitates the choice of preventive, mitigating or corrective actions.