Open AccessApplication of empirical analysis to underground mine a study case In morocco
Author(s) -
O. Ghazdali,
Tarik Tagma,
Said Rziki,
Jalal Moustadraf
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1743/1/012031
Subject(s) - rock mass rating , rock mass classification , geology , excavation , mining engineering , logging , sedimentary rock , underground mining (soft rock) , geotechnical engineering , geochemistry , archaeology , coal mining , geography , forestry , coal
The OUMJRANE mine located in the eastern Anti-Atlas in Morocco, is operating underground mining in various sedimentary rocks from sandstones to shales. During operation, several instabilities are recorded in the underground galleries. The present study represents an empirical characterization based on the classification index of the rock mass: RMR (Rock Mass Rating), Q (Tunnel Quality Index) of the stability of the excavation. The input data used for this analysis were based on fracturing surveys, core logging, and laboratory tests. The results of this study show that the rock mass is of low quality.