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Measurement of explosively induced movement and spalling of granite model blocks
Industrial Metrology and Optics, School of Industrial Engineering and Management, KTH.
Carl Bro AB, Eskilstuna.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Industrial Metrology and Optics, School of Industrial Engineering and Management, KTH.
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2007 (English)In: International Journal of Impact Engineering, ISSN 0734-743X, E-ISSN 1879-3509, Vol. 34, no 12, 1936-1952 p.Article in journal (Refereed) Published
Abstract [en]

Charges of high explosives have been buried (countersunk) in granite blocks and detonated. This article describes the measurement and evaluation of the shock wave propagating through the granite blocks. It also demonstrates how the shock wave data can be used to improve computer simulations of granite's behaviour. The overall goal has been to investigate how granite withstands penetrating weapons, that first penetrate the ground and then detonates within the created cavity. Several variables have been investigated. It is shown that water content of the granite can increase the shock wave amplitude with up to a factor 2, and a crack in the granite often attenuates the shock wave amplitude with a factor 4 or more. Also, the granite block thickness needed to prevent internal crack formation has been investigated.

Place, publisher, year, edition, pages
2007. Vol. 34, no 12, 1936-1952 p.
Keyword [en]
Civil engineering and architecture - Geoengineering and mining engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-8297DOI: 10.1016/j.ijimpeng.2006.11.006Local ID: 6ca4b190-66c7-11dc-a0c3-000ea68e967bOAI: oai:DiVA.org:ltu-8297DiVA: diva2:981189
Note

Validerad; 2007; 20070919 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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