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Effectiveness of emulsion explosives in quarrying in high grade metamorphic rocks in Sri Lanka

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dc.contributor.author Weerawarnkula, S
dc.contributor.author Hemalal, PVA
dc.contributor.author Pathirana, KPR
dc.contributor.editor Abeysinghe, AMKB
dc.contributor.editor Dassanayake, ABN
dc.contributor.editor Elakneswaran, Y
dc.date.accessioned 2017-11-01T13:59:20Z
dc.date.available 2017-11-01T13:59:20Z
dc.identifier.citation Weerawarnkula, S., Hemalal, P.V.A., & Pathirana, K.P.R. (2017). Effectiveness of emulsion explosives in quarrying in high grade metamorphic rocks in Sri Lanka. In A.M.K.B. Abeysinghe, A.B.N. Dassanayake & Y. Elakneswaran (Eds.), Proceedings of International Symposium on Earth Resources Management & Environment 2017 (pp. 103-104). Department of Earth Resources Engineering, University of Moratuwa.
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/12845
dc.description.abstract The optimization of explosive usage in Sri Lankan metamorphic rock is the main objective of this research. Sonic velocity of the rock is a reliable indicator of its structural integrity and resistance to fragmentation. Aggregate impact value is a one parameter of hardness of rock. This study has been conducted on the assumption that the aggregate impact value is an indicator of hardness of the rock. Tests have been planned keeping blasting parameters constant against different rock types having different aggregate impact values. Comparison of the results shows the behaviour of explosives with different rock types having different aggregate impact values or hardness. D'Autriche method has been used to determine the velocity of detonation of emulsion explosives. According to the results of blasting using emulsion explosives on hard rocks produced a greater blast volume and a higher production with a lower fly rock throw, compared with that of softer rocks. Therefore, it is established that the concrete relationship with higher blast efficiencies exist with the hardness of rock and emulsion explosive usage. en_US
dc.language.iso en en_US
dc.subject Detonation en_US
dc.subject Emulsion
dc.subject Fragmentation
dc.subject Optimization
dc.title Effectiveness of emulsion explosives in quarrying in high grade metamorphic rocks in Sri Lanka en_US
dc.type Conference Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2017 en_US
dc.identifier.conference International Symposium on Earth Resources Management & Environment 2017 en_US
dc.identifier.place Wadduwa en_US
dc.identifier.pgnos pp. 103-104 en_US
dc.identifier.proceeding Proceedings of International Symposium on Earth Resources Management & Environment 2017
dc.identifier.email rohanakp64@gmail.com en_US


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