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Author

O. Pashchenko

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Conference Open access 2026

Energy Consumption Assessment of Percussive-Rotary Drilling in Hard Rock Massifs Based on Specific Fracture Energy

Percussive-rotary drilling is widely used for excavation in hard rock massifs, yet it suffers from high energy consumption and low efficiency. This study presents a comprehensive assessment of energy consumption in percussive-rotary drilling based on specific fracture energy as the key metric. Laboratory experiments...

Ratov Boranbay, O. Pashchenko, V. Rastsvietaiev et al. · 0 citations
Conference Open access 2026

Damage Evolution Under Cyclic Dynamic Loading in Rocks During Drilling

The damage evolution in rocks under cyclic dynamic loading is critical for optimizing percussive drilling operations in mining, oil and gas, and geothermal applications. This study investigates the progressive fatigue damage in granite, sandstone, and limestone subjected to repeated impact loading using a modified Spli...

O. Pashchenko, A. Shumov, M. Narbayev et al. · 0 citations

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