Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Firing Pattern on Rock Fragmentation in Surface Mine Blast-A Case Study
Mine Mill Fragmentation System consists of several unit operations like drilling, blasting, excavation, loading and transportation, crushing etc. Blasting plays a vital role on cost of other unit operations in the system as fragmentation determines the down the line performance. A proper blast not only fulfills the material handling requirements, but also reduces the other unit operation costs viz. loading and hauling, crushing, wear and tear of loading and hauling machines and blast induced ground vibration and air overpressure. The core of the system thus is fragmentation and proper muck profile. A good blast fragmentation can be achieved by defining the blast design variables like burden, spacing, hole depth and stemming length through proper engineering. Away from engineering of the blast design variables optimum fragmentation can be achieved by selecting proper firing pattern. A case study is presented in this paper demonstrating that V-type firing pattern improves fragmentation and provides a reliable throw distance of the muck in comparison with other firing patterns.
Effect of Firing Pattern on Rock Fragmentation in Surface Mine Blast-A Case Study
Mine Mill Fragmentation System consists of several unit operations like drilling, blasting, excavation, loading and transportation, crushing etc. Blasting plays a vital role on cost of other unit operations in the system as fragmentation determines the down the line performance. A proper blast not only fulfills the material handling requirements, but also reduces the other unit operation costs viz. loading and hauling, crushing, wear and tear of loading and hauling machines and blast induced ground vibration and air overpressure. The core of the system thus is fragmentation and proper muck profile. A good blast fragmentation can be achieved by defining the blast design variables like burden, spacing, hole depth and stemming length through proper engineering. Away from engineering of the blast design variables optimum fragmentation can be achieved by selecting proper firing pattern. A case study is presented in this paper demonstrating that V-type firing pattern improves fragmentation and provides a reliable throw distance of the muck in comparison with other firing patterns.
Effect of Firing Pattern on Rock Fragmentation in Surface Mine Blast-A Case Study
Lecture Notes in Civil Engineering
Verma, Amit Kumar (Herausgeber:in) / Mohamad, Edy Tonnizam (Herausgeber:in) / Bhatawdekar, Ramesh Murlidhar (Herausgeber:in) / Raina, Avtar Krishen (Herausgeber:in) / Khandelwal, Manoj (Herausgeber:in) / Armaghani, Danial (Herausgeber:in) / Sarkar, Kripamoy (Herausgeber:in) / Chouhan, Lalit Singh (Autor:in) / Raina, A. K. (Autor:in) / Murthy, V. M. S. R. (Autor:in)
International Conference on Geotechnical Challenges in Mining, Tunneling and Underground Infrastructures ; 2021
Proceedings of Geotechnical Challenges in Mining, Tunneling and Underground Infrastructures ; Kapitel: 31 ; 481-487
04.06.2022
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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