Evaluation of the Atlas Copco relation between burden and blast-hole diameter and rock strength at bench blasting - a case study

Ratan Raj Tatiya; Adel Al Ajmi

doi:10.1080/13895260008953310

Evaluation of the Atlas Copco relation between burden and blast-hole diameter and rock strength at bench blasting - a case study

Ratan Raj Tatiya, Adel Al Ajmi

Petroleum and Chemical Engineering

Research output: Contribution to specialist publication › Article

1 Citation (Scopus)

Abstract

In surface mines, a successful blast design provides a sufficient quantity of suitably fragmented and properly placed much at the lowest practical cost. One of the significant variables in such blast designs is the 'burden'. This paper outlines an empirical formula to determine the burden for blast-hole diameters in the range of 25 to 304 mm based on the uniaxial compressive strength of the rock using ANFO as the main explosive charge. The formula has been tested at two working limestone mines in the Sultanate of Oman and it has given very positive results. Thus, besides its possible application for the new mines, the formula can be used to check the existing burden at any working mine.

Original language	English
Pages	151-160
Number of pages	10
Volume	14
No.	2
Specialist publication	International Journal of Surface Mining, Reclamation and Environment
DOIs	https://doi.org/10.1080/13895260008953310
Publication status	Published - 2000

Keywords

Bench blasting
Blasthole diameter
Rock strength
Surface mines

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Soil Science
Geology
Earth-Surface Processes
Management of Technology and Innovation

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10.1080/13895260008953310

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AB - In surface mines, a successful blast design provides a sufficient quantity of suitably fragmented and properly placed much at the lowest practical cost. One of the significant variables in such blast designs is the 'burden'. This paper outlines an empirical formula to determine the burden for blast-hole diameters in the range of 25 to 304 mm based on the uniaxial compressive strength of the rock using ANFO as the main explosive charge. The formula has been tested at two working limestone mines in the Sultanate of Oman and it has given very positive results. Thus, besides its possible application for the new mines, the formula can be used to check the existing burden at any working mine.

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Evaluation of the Atlas Copco relation between burden and blast-hole diameter and rock strength at bench blasting - a case study

Abstract

Keywords

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