Role of Modern Strata Monitoring Instrumentation in PSLW Face in India

Jump To References Section

Authors

  • Aveek Mangal
     Assistant Manager, Coal India Limited ,IN
  • P S Paul
     Assistant Professor, Department of Mining Engineering, Indian School of Mines, Dhanbad, Jharkhand, 826004 ,IN

Keywords:

International longwall trends, cavability of roof, instrumentations

Abstract

Longwall mining is one of the most acclaimed and widely used in underground method for coal extraction characterized with high production, productivity and safety potentials. The interaction of powered roof supports with the roof is the key issue in strata mechanics of longwall mining. Longwall coal extraction method though showed the potential of high outputs, never rose to the expectation in India due to factors pertaining to strata mechanics problems, poor spares management, adaptation of technology without suitability analysis and unyielding exertion ethnicity. The paper attempts to discuss the role of different strata monitoring instruments installation, working principle and data monitoring procedures’ in powered support longwall system in India and effective scientific tool to predict various aspects related to strata mechanics of such workings. Load density, height of caving block, distance of fractured zone ahead of the face, overhang of goaf and mechanical strength of the debris above and below the support base have been found to influence the magnitude of load on supports.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Downloads

Published

2022-10-20

How to Cite

Mangal, A., & Paul, P. S. (2022). Role of Modern Strata Monitoring Instrumentation in PSLW Face in India. Journal of Mines, Metals and Fuels, 67(4), 192–198. Retrieved from https://informaticsjournals.co.in/index.php/jmmf/article/view/31542

Issue

Volume 67, Issue 4, April 2019

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

 

References

Das, S.K., (2000): “Observations and Classification of Roof Strata Behaviour over Longwall Coal Mining Panels in India”, International Journal of Rock Mechanics & Mining Sciences, journal homepage:www.elsevier.com/locate/ijrmms, vol.37, pp.585-597

Gang, L., Jing-kui, L., Hong-du, C., Yuan, L., (2009): “Design method of synergetic support for coal roadway”, The 6th International Conference on Mining Science &Technology, China, vol. 1 and pp. 524–529

Ghose, A. K., (2003): “Why Longwall in India has not Succeeded as in other Developing Country Like China”, IE (I) Journal-MN, vol. 84, pp.1-4

Mandal, P.K., Singh, R., Maiti, J., Singh, A.K., Kumar, R., Sinha, A., (2008): “Underpinning-based simultaneous extraction of contiguous sections of a thick coal seam under weak and laminated parting”, International Journal of Rock Mechanics & Mining Sciences, vol. 45 and pp. 11–28

Mark, C., Gale, W., Oyler, D., Chen, J., (2007): “Case history of the response of a longwall entry subjected to concentrated horizontal stress”, International Journal of Rock Mechanics & Mining Sciences, vol. 44 and pp. 210–221

Mas Ivars, D., E. Pierce, M., Darcel, C., Reyes-Montes, J., O. Potyondy, D., Young, R. P., Cundall, Peter A., (2010): “The synthetic rock mass approach for jointed rock mass modelling”, International Journal of Rock Mechanics & Mining Sciences

Peng, S.S, Chiang, H.S., (1984): “Longwall Mining”, A Wiley- Interscience Publication, John Wiley & Sons, New York, Chichester, Brisbane, Toronto, Singapore, TN275.P423 1983 622'.334 83-17113, IDBN 0-471-86881-7, chapter 2 and 4, pp.41- 42 and 189-193

Prasad, N., Jha, G.K., (2009): “An Experience of Longwall Mining in India”, First Edition, ISBN817956-029-5, Lovely Prakashan, Opposite D.G.M.S Office, Main Road, Hirapur, Dhanbad, Pin-826001, chapter 9, “Strata Management”, pp.135-141