Analysis and interpretation of massive quality parameters for geomechanical model proposition

Authors

  • Luciana Arnt Abichequer Universidade Federal do Pampa, Caçapava do Sul, RS
  • Luis Eduardo de Souza Universidade Federal do Pampa, Caçapava do Sul, RS
  • Raul Oliveira Neto Universidade Federal do Pampa, Caçapava do Sul, RS, Brasil
  • Juliana Fernandes Fabrício Universidade Federal do Pampa, Caçapava do Sul, RS

DOI:

https://doi.org/10.5902/2236130818712

Keywords:

Geomechanical model, Classification systems, Geomechanical characterization

Abstract

Before lauching any mining enterprise, whether open pit or underground, must have knowledge of rock mass geomechanical characteristics, which the work will be developed. The geomechanical classification systems are used to obtain information about these characteristics. These systems gather the necessary information and propose an index for rock mass qualifying. This article presents the methodology used on a rock mass qualifying for a lead and zinc deposit, through the classification system Rock Mass Rating (RMR), to propose a geomechanical model. Through the analysis of 50 drill holes with its geological logs it was possible to create the deposit geological model, recognizing the units present in the study area. Were identified 4 units: sandstone, conglomerate, rhythmite and ore. In addition, information was collected regarding the 6 parameters, which RMR is based, on drill holes. After RMR values being determined over all drill holes, they were estimated within each unit by the indicator kriging. From the estimation results was possible to obtain the geomechanical model. In the proposed geomechanical model was observed the predominance of class II (good rock) in all units. In the model base predominated class III and IV (fair rock and poor rock respectively) due to the presence of breccia.

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Author Biographies

Luciana Arnt Abichequer, Universidade Federal do Pampa, Caçapava do Sul, RS

Engenheiro(a) de Minas/Professor do Programa de Pós-Graduação em Tecnologia Mineral (PPGTM), Universidade Federal do Pampa, Caçapava do Sul, RS, Brasil

Luis Eduardo de Souza, Universidade Federal do Pampa, Caçapava do Sul, RS

Engenheiro de Minas/Professor do Programa de Pós-Graduação em Tecnologia Mineral (PPGTM), Universidade Federal do Pampa, Caçapava do Sul, RS, Brasil

Raul Oliveira Neto, Universidade Federal do Pampa, Caçapava do Sul, RS, Brasil

Engenheiro de Minas/Professor do Programa de Pós-Graduação em Tecnologia Mineral (PPGTM), Universidade Federal do Pampa, Caçapava do Sul, RS, Brasil

Juliana Fernandes Fabrício, Universidade Federal do Pampa, Caçapava do Sul, RS

Tecnólogo em Mineração, Universidade Federal do Pampa, Caçapava do Sul,RS, Brasil

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Published

2015-07-08

How to Cite

Abichequer, L. A., Souza, L. E. de, Oliveira Neto, R., & Fabrício, J. F. (2015). Analysis and interpretation of massive quality parameters for geomechanical model proposition. Monografias Ambientais, 14, 62–79. https://doi.org/10.5902/2236130818712

Issue

REMOA, V.14, 2015, ESPECIAL EDITION: TECNOLOGIA EM MINERAÇÃO – UNIPAMPA – CAMPUS DE CAÇAPAVA DO SUL – RS

Section

UNDERGRAD WORKS

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