In situ stress analysis of the Cuiaba Mine – Sabará – Minas Gerais - Brasil
DOI:
https://doi.org/10.24849/j.geot.2015.133.05Keywords:
In situ stress, Discing, BreakoutAbstract
In underground mine projects, the in situ stress knowledge is essential, since those need, directly or as an input, the stress orientation and magnitude for the underground excavations design, their support and reinforcement, construction numerical modeling, mining method and mining sequence selection, rockburst prediction and others. The in situ stress knowledge is generally based on in situ strain measurements, as the overcoring technique. Since they have a high cost, generally this kind of measurements is limited to some. Nevertheless, different information can be used for stress estimation known as indirect and indicative techniques, like discing and breakout. The analysis and comparison of the direct measurements with discing and breakout information provided to the Cuiaba Mine considerable data for its in situ stress model construction.
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References
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