Effect of the fracture process zone in directed crack propagation in borehole blasting

George Exadaktylos, Zacharias Agioutantis, Eleftherios Lambrou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The growth of directed radial cracks originating from diametrically opposite notches in a blasthole, is analyzed. The cracks are considered to be composed from a traction free portion and a microcracking zone where cohesive forces act. A preliminary energy balance approach showed that the length of this zone has an effect on the blast results. Subsequently, a coupled non-linear displacement discontinuity model was applied in order to verify this effect.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - Rock Mechanics in Petroleum Engineering 1994
Pages463-470
Number of pages8
DOIs
StatePublished - 1994
EventSPE/ISRM Rock Mechanics in Petroleum Engineering Conference 1994 - Delft, Netherlands
Duration: Aug 29 1994Aug 31 1994

Publication series

NameSociety of Petroleum Engineers - Rock Mechanics in Petroleum Engineering 1994

Conference

ConferenceSPE/ISRM Rock Mechanics in Petroleum Engineering Conference 1994
Country/TerritoryNetherlands
CityDelft
Period8/29/948/31/94

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

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