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Dynamic blast compaction of some granular materials: small-scale tests and numerical modelling of a mining-related problem
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-5165-4229
2010 (English)In: International Journal of Mining and Mineral Engineering, ISSN 1754-890X, E-ISSN 1754-8918, Vol. 2, no 2, p. 79-100Article in journal (Refereed) Published
Abstract [en]

Sub-Level Caving (SLC) is an important mass mining method, involving blasting of ore against granular material in the form of caving debris. The debris compaction due to blasting influences the caving process. Blasting tests were made on cylinders of magnetic mortar placed inside plastic cylinders and confined by packed granular material. By introducing the acoustic impedance between the mortar and the confining granular material, the compaction is found to depend on material, specific charge and physical properties of the debris with statistical analysis. The tests have shown to be a good input for numerical modelling of blast compaction.

Place, publisher, year, edition, pages
2010. Vol. 2, no 2, p. 79-100
Keywords [en]
blasting, compaction, numerical modelling, Civil engineering and architecture - Geoengineering and mining engineering
Keywords [sv]
sprängning, kompaktering, numerisk modellering, Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-5619DOI: 10.1504/IJMME.2010.035311Scopus ID: 2-s2.0-84861306012Local ID: 3c57af00-c610-11df-a707-000ea68e967bOAI: oai:DiVA.org:ltu-5619DiVA, id: diva2:978493
Note
Validerad; 2010; 20100922 (dan930)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Johansson, DanielVillegas, TomasOuchterlony, Finn

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