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International Journal of Mining Engineering

, Volume 1, Issue 3, pp 261–266 | Cite as

Cost analysis to determine optimum geometry of a retreating longwall face

  • Santanu Majumdar
  • Subhas C. Ray
Technical Note

Conclusion

A study of the values of the constants shows thatA3>A2>A1 andA3>A4>A5.A3 does not influence the limits of the values ofL andF. However,A3 influences their optimum values changing the position of the curves with relation to the axes. Since the constants are sum of costs of some individual items divided by seam constant or by product of seam and machine constants then with standardized cost figures and other data it will be possible to calculate the constants and to get the optimum panel and face lengths.

Key words

Longwall mining cost analysis coal mining 

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References

  1. Bordia, S.K. (1981) Design of longwall mining system,Proceedings of Summer School on Advanced Coal Mining Methods, IIT, Kharagpur.Google Scholar
  2. Gross, M.A. and Goode, C.S. (1978) Longwall face supports in the United States,Colliery Guardian 226, 5–16.Google Scholar
  3. Lama, R.D. (1964) Some aspects of the planning of deep mines — II,Colliery Engineering 41, 331–3.Google Scholar
  4. Lama, R.D. (1977) Principles of underground coal mine design (Part 1),Colliery Guardian 225, 281–8.Google Scholar
  5. National Coal Board (1972)Design of mine layouts with reference to geological and geometrical factors, Working Party Report, Mining Department, Doncaster.Google Scholar
  6. National Coal Board (1975)Subsidence Engineer's Handbook, Mining Department, London.Google Scholar
  7. Tsuruoka, Y. and Shikasho, M. (1980) How to calculate optimum longwall length,World Coal 6, No. 3.Google Scholar
  8. Tillesen, R. (1966) Fuhrt die Weitere Entwicklung der Abbautechnik Zu Kurseren Streben,Gluockanf Forschung Shefte 27, 269–72.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1983

Authors and Affiliations

  • Santanu Majumdar
    • 1
  • Subhas C. Ray
    • 1
  1. 1.Department of Mining EngineeringIndian Institute of TechnologyKharagpurIndia

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