A case study to improve blasting efficiency by the use of emulsion explosives
Sabanov S. Nikitin O. Qureshi A. Dauitbay Z.
2023Estonian Academy Publishers
Oil Shale
2023#40Issue 3244 - 259 pp.
This work analyses issues associated with the deteriorated blasting efficiency by the use of emulsion explosives in underground oil shale mines that utilise room and pillar mining methods. The problems were connected with the reduction in entry advance, shattering of pillar walls and falling of the roof. The aim of this study is to improve blasting efficiency that can guarantee a sufficient entry advance and secure stable conditions of the pillars and the immediate roof. The improved blasting pattern was successfully tested under in-situ conditions. It was demonstrated that the entry advance and the stability of the immediate roof and pillar walls were significantly enhanced as a result.
blasting efficiency , blasting energy distribution , emulsion explosives , specific charge , velocity of detonation
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School of Mining and Geosciences, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan city, Kazakhstan
Eesti Energia, Enefit Power AS, Estonia
School of Mining and Geosciences
Eesti Energia
10 лет помогаем публиковать статьи Международный издатель
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