Technical-operational study of a sand mining by dredging and blasting in Natividade (RJ)

Abstract

Introduction. The aggregates sector is fundamental for regional socioeconomic development. Sand is the most extracted commodity in this segment, due to its low added value and simplicity of exploitation. Objective. This article summarizes results from the analysis of two extractive projects installed in Natividade (RJ), one involving dredging and the other involving slope dismantling. Methodology. We sought to evaluate the operational, environmental and economic aspects for the implementation and operation of the activities. Results. The civil construction sector has great relevance in local urban development, despite macroeconomic seasonalities. Sand extraction, in most cases, involves exploitation close to consumer centers to reduce transport costs. Conclusion. Considering the low intervention in the environment and the indirect positive impact on the economy, with the supply of inputs for civil construction, it is concluded that sand extraction promotes development, in addition to maintaining resources and revenue in the municipality itself.