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

Exadaktylos Georgios, Agioutantis Zacharias, Lambrou Eleftherios

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URIhttp://purl.tuc.gr/dl/dias/3EA5DB9B-65EE-4358-889C-C88BC5E032A7-
Identifierhttps://doi.org/10.2118/28085-MS-
Identifierhttps://www.onepetro.org/conference-paper/SPE-28085-MS-
Languageen-
Extent8 pagesen
TitleEffect of the fracture process zone in directed crack propagation in borehole blastingen
CreatorExadaktylos Georgiosen
CreatorΕξαδακτυλος Γεωργιοςel
CreatorAgioutantis Zachariasen
CreatorΑγιουταντης Ζαχαριαςel
CreatorLambrou Eleftherios en
PublisherSociety of Petroleum Engineersen
Content SummaryThe 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. en
Type of ItemΠλήρης Δημοσίευση σε Συνέδριοel
Type of ItemConference Full Paperen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-10-22-
Date of Publication1994-
SubjectRock mechanicsen
Bibliographic CitationG. Exadaktylos, Z. Agioutantis and E. Lambrou, "Effect of the fracture process zone in directed crack propagation in borehole blasting," in SPE/ISRM International Conference on Rock Mechanics in Petroleum Engineering, 1994, pp. 463-470.doi:10.2118/28085-MS.el

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