A Review of the Blast Fragmentation Analysis Techniques used in Surface Mines

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Authors

  • Suryajyoti Nanda
     Department of Mining Engineering, Indian Institute of Technology, Kharagpur - 721302, West Bengal ,IN
  • H. K. Naik
     Department of Mining Engineering department, National Institute of Technology, Rourkela - 769008, Odisha ,IN

DOI:

https://doi.org/10.18311/jmmf/2023/28601

Keywords:

Coefficient of Gradation, Fragmentation, Fragment Size Distribution, Image Analysis Technique, Uniformity Coefficient

Abstract

Fragmentation refers to the process of breaking solid in-situ rock masses into smaller pieces during excavation or material handling operations. The fragment size distribution and degree of fragmentation within the blasted rock mass stand as a critical aspect for optimizing the efficiency of loading, transportation, crushing, and milling operations. The analysis of blast fragmentation analysis is done by several existing modern techniques which include the visual analysis method, photogrammetric method, and image analysis method, etc. In this study, all the blast fragmentation techniques are reviewed, and the advantages and disadvantages of all the methods are discussed. Along with that, a blast fragmentation analysis is conducted for the rock pile images of a blasting site collected from Dongri Buzurg Mine (MOIL), India using the image processing technique in WipFrag software. The feasibility of the blasting patterns is judged based on the uniformity coefficient (Cu) and the coefficient of gradation (Cg) which are found to be 4.47 and 0.94 respectively. The fragmentation for the muck pile is found to be uniform and well-graded for the blast site and the methodology used is found to be simple yet effective for the analysis.

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Published

2023-12-01

How to Cite

Nanda, S., & Naik, H. K. (2023). A Review of the Blast Fragmentation Analysis Techniques used in Surface Mines. Journal of Mines, Metals and Fuels, 71(12), 2445–2454. https://doi.org/10.18311/jmmf/2023/28601

Issue

Volume 71, Issue 12, December 2023

Section

Articles

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Copyright (c) 2024 Journal of Mines, Metals and Fuels

Creative Commons License

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

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Europe PMC
Received 2021-09-08
Accepted 2024-01-19
Published 2023-12-01

 

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