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Mining Publication: Application of the NIOSH-Modified Holmberg-Persson Approach to Perimeter Blast Design
Keywords: Blasting Mathematics
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: January 2008
Authors: SR Iverson, JC Kerkering, WA Hustrulid
Conference Paper - January 2008
Download PDF Document (1.65 MB)
NIOSHTIC2 Number: 20034954
Proc 34th Ann Conf Explos Blasting Tech 2008 Jan; 2:1-33
Perimeter control blasting is common in civil construction projects but not as common in mining. A poorly designed and executed underground mine development blast design can result in unwanted wall rock damage. This damage increases the risk of rock falls and injury. With the availability of good drilling equipment, it is a simple matter to add the few extra holes needed to change conventional drifting into drifting with perimeter control. In the 1970's, Holmberg and Persson (H-P) introduced the Swedish approach to contour blasting and it has found wide acceptance due to the logical basis and ease of application. An error in the mathematics of the H-P approach was discovered in 2002 and use has fallen into question. This paper presents a modification which corrects the mathematical error. The NIOSH-modified H-P design curves are basically identical to the original ones in the far field but with some significant differences in the near field. The application of the curves remains the same. The determination of the required site constants and the construction of the design curves are demonstrated with respect to data collected at the Stillwater mine, Nye, Montana.
Image of publication Application of the NIOSH-Modified Holmberg-Persson Approach to Perimeter Blast DesignConference Paper - January 2008
Download PDF Document (1.65 MB)
NIOSHTIC2 Number: 20034954
Proc 34th Ann Conf Explos Blasting Tech 2008 Jan; 2:1-33
See Also
Blast Wave Propagation in Underground Mines
A Century of Bureau of Mines/NIOSH Explosives Research
Fatal Accidents Due to Flyrock and Lack of Blast Area Security and Working Practices in Mining
A Gas Pressure-Based Drift Round Blast Design Methodology
A Hydrodynamics-Based Approach for Predicting the Blast Damage Zone in Drifting as Demonstrated Using Concrete Block Data
Low Temperature Limits for Mixing Recycled Oil, Diesel Fuel, and Ammonium Nitrate to Make ANFO-Type Blasting Agents
Safe Distances for Blasting Wiring from Commonly Encountered Underground Electromagnetic Energy Sources
A Summary of Fatal Accidents Due to Flyrock and Lack of Blast Area Security in Surface Mining, 1989 to 1999
Technology News 522 - Blast Area Security: Flyrock Safety
Toolbox Training on Flyrock Awareness
Page last reviewed: June 20, 2016
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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