Abstract
This paper deals with the risk assessment method of roadheader feasibility in underground conditions of Estonia mine. In modernization of Estonian underground mining, roadheaders that extract oil shale selectively play the most important role. Selective extraction allows reduction of rock mass volumes during the loading, transportation and enrichment processes. Thus, about 23% of limestone extracted together with oil shale will be left in the mine for backfilling the excavated areas. Backfilling increases carring capacity of pillars reducing losses of oil shale and restores, in a certain measure, filtrational, hydrodynamical, and aerodynamic properties of the geological environment. For selective extraction four variants of different excavation thicknesses, depending on geological conditions, have been proposed. Risk analysis allows comparison of the advantages and disadvantages of full and selective extraction. Risks of oil shale losses during selective extraction are estimated using the event tree. Preliminary calculations have shown sustainability of roadheaders for selective extraction under the mining and geological conditions of Estonia mine.
| Original language | English |
|---|---|
| Pages (from-to) | 153-162 |
| Number of pages | 10 |
| Journal | Oil Shale |
| Volume | 25 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 1 2008 |
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ASJC Scopus subject areas
- Fuel Technology
- Energy Engineering and Power Technology
- Geotechnical Engineering and Engineering Geology
Cite this
Risk assessment of feasibility of roadheaders in estonian undergound mining. / Sabanov, S.; Nikitin, O.; Pastarus, J. R.
In: Oil Shale, Vol. 25, No. 2, 01.01.2008, p. 153-162.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Risk assessment of feasibility of roadheaders in estonian undergound mining
AU - Sabanov, S.
AU - Nikitin, O.
AU - Pastarus, J. R.
PY - 2008/1/1
Y1 - 2008/1/1
N2 - This paper deals with the risk assessment method of roadheader feasibility in underground conditions of Estonia mine. In modernization of Estonian underground mining, roadheaders that extract oil shale selectively play the most important role. Selective extraction allows reduction of rock mass volumes during the loading, transportation and enrichment processes. Thus, about 23% of limestone extracted together with oil shale will be left in the mine for backfilling the excavated areas. Backfilling increases carring capacity of pillars reducing losses of oil shale and restores, in a certain measure, filtrational, hydrodynamical, and aerodynamic properties of the geological environment. For selective extraction four variants of different excavation thicknesses, depending on geological conditions, have been proposed. Risk analysis allows comparison of the advantages and disadvantages of full and selective extraction. Risks of oil shale losses during selective extraction are estimated using the event tree. Preliminary calculations have shown sustainability of roadheaders for selective extraction under the mining and geological conditions of Estonia mine.
AB - This paper deals with the risk assessment method of roadheader feasibility in underground conditions of Estonia mine. In modernization of Estonian underground mining, roadheaders that extract oil shale selectively play the most important role. Selective extraction allows reduction of rock mass volumes during the loading, transportation and enrichment processes. Thus, about 23% of limestone extracted together with oil shale will be left in the mine for backfilling the excavated areas. Backfilling increases carring capacity of pillars reducing losses of oil shale and restores, in a certain measure, filtrational, hydrodynamical, and aerodynamic properties of the geological environment. For selective extraction four variants of different excavation thicknesses, depending on geological conditions, have been proposed. Risk analysis allows comparison of the advantages and disadvantages of full and selective extraction. Risks of oil shale losses during selective extraction are estimated using the event tree. Preliminary calculations have shown sustainability of roadheaders for selective extraction under the mining and geological conditions of Estonia mine.
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U2 - 10.3176/oil.2008.2S.07
DO - 10.3176/oil.2008.2S.07
M3 - Article
VL - 25
SP - 153
EP - 162
JO - Oil Shale
JF - Oil Shale
SN - 0208-189X
IS - 2
ER -