Efficacy of Different Vegetation Methods for Stabilization of Iron Ore Fines Dump in a Surface Iron Ore Mine

Authors

  • Thakurani Iron Ore Mines of Sarda Mines (P) Limited, Soyabali, Barbil, Keonjhar, (Odisha
  • Department of Mining Engineering, Indian School of Mines, Dhanbad 826 004
  • Department of Mining Engineering, Indian School of Mines, Dhanbad 826 004
  • Thakurani Iron Ore Mines of Sarda Mines (P) Limited, Soyabali, Barbil, Keonjhar, (Odisha

DOI:

https://doi.org/10.18311/jmmf/2017/26996

Keywords:

Fines Dump, Re-Vegetation, Coir Matting, Local Species, Grasses, Mechanical Properties.

Abstract

The disproportionate increase in the production of iron ore in Odisha has resulted in the accumulation of large quantity of fines ore. Although literature suggests stabilization of dumps using re-vegetation methods, the most effective method of stabilization is still in question. Hence this study was conducted to examine the effectiveness of the three different vegetation methods at fines dump namely, vegetation by coir matting, vegetation by local species and vegetation by grass. This study adopted in-situ jack shear test to find out the most efficient vegetation method for the stabilization of iron ore fine dumps. This study used a customized shear box having a dimension of 0.15m í— 0.15 m í—0.15 m, which was specifically designed and fabricated to evaluate the mechanical stability of vegetated fines dump by different vegetation methods. The analysis of field data, graphical presentation and cost analysis has helped us to conclude that the plantation of local species has increased the mechanical stability of fines dump in comparison wth the plantation of grass or coir matting. Further, local species such as Karanj (Ponganna Pinnata), Shisham (Dalbergia Sissoo), Neem (Azadirachta India), Sal (Shorea Robusta), Kendu (Diospyros Melanoxylon), Amla (Phyllanthus Emblical) Jamun (Syzgium Cumini), Banyan (Ficus Benghalensis) and Krishnachura (Delonix Regia) were estimated to be more cost-effective for stabilization of fines dumps, with a possibility of extending its role towards maintaining long term stability, when compared to other methods.

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Published

2017-06-01

How to Cite

Ranjan, V., Sen, P., Kumar, D., & Sarsawat, A. (2017). Efficacy of Different Vegetation Methods for Stabilization of Iron Ore Fines Dump in a Surface Iron Ore Mine. Journal of Mines, Metals and Fuels, 65(6), 367–374. https://doi.org/10.18311/jmmf/2017/26996

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