Explosive energy is the most commonly used form of energy to fragment rock mass/overburden and mineral deposits in the mines. Fragmentation obtained in the blasting process influences the downstream costs like loading cost, transportation cost, processing cost, etc. Among the various factors which influence the rock fragmentation, initiation system is one of the most important because presently much research is going on in this area of rock blasting. Some field studies were taken up with conventional detonating cord initiation and shock-tube-based NONEL initiation systems to study the influence of initiation systems on rock fragmentation. Fragmentation analysis was done using the boulder count method and image analysis. It was found that the shock-tube initiation gives 33% less boulders and 31% lesser K50 value compared to detonating cord initiation. © 2004 Taylor & Francis Ltd.

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dc.contributor.authorSastry, V.R.
dc.contributor.authorRam Chandar, K.
dc.date.accessioned2026-02-05T11:00:21Z
dc.date.issuedShock tube initiation for better fragmentation: A case study
dc.description.abstract2004
dc.identifier.citationFragblast, 2004, 8, 4, pp. 207-220
dc.identifier.issn1385514X
dc.identifier.urihttps://doi.org/10.1080/13855140500041770
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27961
dc.publisherTaylor and Francis Ltd.
dc.subjectCosts
dc.subjectDetonation
dc.subjectImage analysis
dc.subjectMineral resources
dc.subjectRocks
dc.subjectBoulder count method
dc.subjectCord initiation
dc.subjectFragmentation
dc.subjectShock-tube initiation
dc.subjectBlasting
dc.subjectblasting
dc.subjectfragmentation
dc.titleExplosive energy is the most commonly used form of energy to fragment rock mass/overburden and mineral deposits in the mines. Fragmentation obtained in the blasting process influences the downstream costs like loading cost, transportation cost, processing cost, etc. Among the various factors which influence the rock fragmentation, initiation system is one of the most important because presently much research is going on in this area of rock blasting. Some field studies were taken up with conventional detonating cord initiation and shock-tube-based NONEL initiation systems to study the influence of initiation systems on rock fragmentation. Fragmentation analysis was done using the boulder count method and image analysis. It was found that the shock-tube initiation gives 33% less boulders and 31% lesser K50 value compared to detonating cord initiation. © 2004 Taylor & Francis Ltd.

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