Resumo

NAVARRO-TORRES, Vidal Félix. Applying a flexible model for analysis of stress-strain problem in room and pillar mining . REV. MAMYM [online]. 2022, vol.7, n.2, pp.10-16. ISSN 2519-5352.

Abstract In room and pillar (R&P) mining, the procedures adopted to design mine panels are based on the safety factor (SF) of pillars. For this reason, is so important to study the geological and geomechanical behavior of the areato be mined. The use of a mathematical model allows identifying problematic áreas and to test different configurations in a safe manner. This paper shows the development and application of a flexible and automatic routine to quantify the safety in R&P mining in terms of SF and room convergence (RC). The commercial software package FLAC3D was used to implement a computational routine in FISH language capable of representing in a fast and accurate way the main characteristics of the geomechanical conditions, lithology and geometrical features of a R&P mining project automatically. In order to show the capabilities of the routine developed here, a case of study was performed in a manganese ore mine.

Palavras-chave : mining; room; pillar; numerical model; ore; recovery.

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