Stability of Continuous Miner Workings Using Numerical Modelling Approach

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Authors

  • Sreenivasa Rao Islavath
     Assistant Professor and Head Department of Mining Engineering, Kakatiya University, University of Engineering, Kothagudem 507101 ,IN

Keywords:

Pillar, roadway, ribs, fender, displacement, principal stress, safety factor

Abstract

Continuous miner technology is one of the mass mining technologies suited for exploitation of deep coal deposits. This method requires less investment and ensures more productivity. This method provides more roof exposure in the form of slices and leaves the small ribs between slices during depillaring operation which may lead to roof fall, side fall and ribs failure. In order to avoid the accidents due to roof, side falls and failure of ribs, the stability analysis of continuous workings is to be performed. In this study, a three dimensional finite analysis is performed for the continuous miner panel. In the continuous miner panel, dip most pillar is depillared and nearby pillar is under splitting condition. The vertical displacements due to this operation are estimated in the working as well as on the surface. The safety factors of ribs are also estimated using HoekBrown rock mass failure envelope.

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Published

2022-10-20

How to Cite

Islavath, S. R. (2022). Stability of Continuous Miner Workings Using Numerical Modelling Approach. Journal of Mines, Metals and Fuels, 67(8), 360–365. Retrieved from https://informaticsjournals.com/index.php/jmmf/article/view/31642

Issue

Volume 67, Issue 8, August 2019

Section

Articles

License

Creative Commons License

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

 

References

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