Risk assessment of feasibility of roadheaders in estonian undergound mining

S. Sabanov, O. Nikitin, J. R. Pastarus

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 languageEnglish
Pages (from-to)153-162
Number of pages10
JournalOil Shale
Volume25
Issue number2
DOIs
Publication statusPublished - Jan 1 2008

Fingerprint

Oil shale
Risk assessment
oil shale
risk assessment
Risk analysis
assessment method
Modernization
pillar
Limestone
Excavation
modernization
aerodynamics
Sustainable development
Aerodynamics
excavation
Rocks
sustainability
limestone
rock
loss

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 journalArticle

Sabanov, S. ; Nikitin, O. ; Pastarus, J. R. / Risk assessment of feasibility of roadheaders in estonian undergound mining. In: Oil Shale. 2008 ; Vol. 25, No. 2. pp. 153-162.
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