Barrier holes and trench application to reduce blast induced vibration in Seyitomer coal mine |
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Authors: | Kaan Erarslan Önder Uysal Ercan Arpaz M Akif Cebi |
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Institution: | (1) Mining Engineering Department, Dumlupinar University, Kutahya, Turkey;(2) Kocaeli Vocational School, Kocaeli University, Kocaeli, Turkey;(3) Seyitomer Lignite Enterprise, Kutahya, Turkey |
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Abstract: | In this research, experimental applications have been performed to reduce blast induced vibrations in open pit mines. For
this purpose, artificial discontinuity zones such as barrier holes and trench were opened in a dragline panel of Seyitomer
Lignite Enterprise, Kutahya, Turkey. Peak particle velocities in front of and behind them were measured by seismographs. In
this way, their effect against vibration was observed and compared. Barrier holes were opened 24 m deep through 3 parallel
lines and aligned at 1 m spacing. On the other hand, the trench had 8 m depth and 4 m width. During the research, 209 measurements
were taken belonging to 105 explosions. Twenty-eight explosions were carried out in the barrier holes experiments and 77 explosions
were carried out in the trench experiments. A decrease in vibration of 14.3–18.5% was obtained behind the barrier holes while
a decrease of 24.8–58.1% was provided by the trench. |
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Keywords: | Blast vibration PPV Trench Barrier holes |
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