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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/3EA5DB9B-65EE-4358-889C-C88BC5E032A7 | ||
| Year | 1994 | ||
| Type of Item | Conference Full Paper | ||
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| Bibliographic Citation | G. 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. https://doi.org/10.2118/28085-MS | ||
| Appears in Collections |
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.
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