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Geotechnical and Geological Engineering
Published in: Geotechnical and Geological Engineering 4/2019

21-01-2019 | Technical Note

Effect of Static Loading on Rock Fragmentation Efficiency Under Ultrasonic Vibration

Authors: Yu Zhou, Songyu Yin, Dajun Zhao

Published in: Geotechnical and Geological Engineering | Issue 4/2019

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Abstract

In this study, the effect of static loading on the rock fragmentation efficiency of ultrasonic vibration drilling was investigated by numerical simulation combined with experimental verification. The inner stress and strain of rock under different vibration frequencies were analyzed, and a static loading–inherent frequency relationship curve was obtained. The inherent frequency increased logarithmically with the magnitude of static loading. The resonance state may be broken with increasing static loading, affecting the drilling efficiency. To improve the rock fragmentation efficiency in the process of ultrasonic vibration drilling, the key point is keeping the inherent frequency of rock always similar to the vibration frequency.
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Metadata
Title
Effect of Static Loading on Rock Fragmentation Efficiency Under Ultrasonic Vibration
Authors
Yu Zhou
Songyu Yin
Dajun Zhao
Publication date
21-01-2019
Publisher
Springer International Publishing
Published in
Geotechnical and Geological Engineering / Issue 4/2019
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-019-00814-3

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