RISK ANALYSIS OF THE PILLAR STRENGTH IN THE ESTONIA MINE

Juri-Rivaldo Pastarus, Sergei Sabanov, Jekaterina Shestakova, Oleg Nikitin

Abstract


This paper deals with the risk analysis and assessment of the pillars strength problems in the Estonia oil shale mine. Aim of this investigation was to determine the strength parameters and predict the bearing capacity of the pillars in Estonia mine, mining block No. 3107 Methods were based on theoretical investigation and experimental data of in-situ conditions. It is given the geological description of the mining block and determined the strength parameters, moisture content and volume density of the oil shale and limestone layers. Analysis showed that the used risk analysis method is applicable for Estonian oil shale mines. The results of the risk analysis are of particular interest for practical purposes.

Keywords


mining block; pillars; event tree; probability; risk analysis

Full Text:

PDF

References


Pastarus J-R., Sabanov S. A method for monitoring mining block stability in Estonian oil shale mines.Proceedings of the Estonian Academy of Sciences. Engineering, 11(1), 2005. pp. 59- 68.

45-D0550/D Digital rock strength index apparatus 2007 (Point Load), Instruction manual.

Brady B.H.G., Brown E.T. Rock mechanics for underground mining, Second edition, Kluwer Academic Publishers, 2002. 571 p.

Nikitin O. Optimization of the Room-and-pillar Mining Technology for Oil-shale Mines, Tallinn, 2003. 73p.

Mining-law and legal regulation acts. Ministry of Environment, Ministry of Economy. Part II. Tallinn, 1998.




DOI: http://dx.doi.org/10.17770/etr2009vol1.1113

Refbacks

  • There are currently no refbacks.