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Modeling safety scenarios for dams strengthens effectiveness of disaster risk management plans in this kind of work by reducing risk of failures that can cause considerable damage. The aim of the present paper was a proposal of a modeling methodology for safety scenarios in tailing dams from the Cuban nickel industry, to determine indicators and failure mechanisms, in order to achieve early detection risks and their reduction, as well as to minimize the negative impacts on the economy, the population, and the environment through a risk and disaster management plan. [ABSTRACT FROM AUTHOR]

The occurrence of landslides in Moa poses a serious threat to the industry, communities, socio-economic activities and the environment. The objective of this research is to assess and map the risks generated by the occurrence of landslides in the area by applying the Geographic Information Systems (GIS). For a methodological guidance, the guideline dated 2012 prepared by the National Risk Management Group was used to conduct the landslide hazard, vulnerability, risk analysis on the ground. As a result, this work produced a map indicating the overall landslide dangerousness in Moa on a 1:100 000 scale. This map is one more risk management and mitigation tool in the territorial organization. [ABSTRACT FROM AUTHOR]

Landslides and rock sliding occur very frequently in the mining area of Catoca, located in Angola. Therefore, a physical/mechanical and geotechnical characterization of the massif and the rock matrix was carried out adopting the landslide classifications as proposed by Hutchinson and Varnes. The safety factor was applied based on the structural weakness coefficient (λ); resulting in 0.70 in surface rocks, sandstones and intraformational sands; 0.58 in oversaturated eluvial gneiss; 0.50 in cracked gneiss and 0.47 in the ore compound of weathered, moist kimberlitic porphyric and weathered porphyric kimberlite. These results indicate the low strength of the massif and the need to reformulate the activities in the mine and the construction of more stable slopes. It could also be observed that deformation of rocks in the slopes and the cuts in the Catoca mine is conditioned by the movement of underground water within the rock massif itself. [ABSTRACT FROM AUTHOR]