Abstract :
Geotechnical information is a key for underground design. The most important parameters are rock mass strength, geological structures, main stress and strain, rock mass classification, discontinuities, etc. All of these may have impact on undergrou nd stability, if some are suitable, and only just one is troubled, it can be due to instability in the underground.
rposes of this study are to classify the rock mass and to introduced the support system in Cibaliung underground gold mine based on the rock mass classification. The characteristics of some geotechnical aspects of Cikoneng and Cibitung area are shown in this paper. Rock mass classification is measured, and the difference between both locations presented as a preliminary study for the next further research. Recommendation of support system policy of Cibaliung underground gold mine which compared to Pongkor underground gold mine also discussed in this paper.
