한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2010년도 춘계 학술발표회
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- Pages.643-648
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- 2010
화강암에 대한 워터젯 파쇄 메커니즘에 관한 연구
A Study on Waterjet Fracture Mechanism for Granitic Rocks
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Oh, Tae-Min
(Dept. of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology) ;
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Cho, Gye-Chun
(Dept. of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
- 발행 : 2010.03.25
초록
Waterjet is a very useful technology for rock excavation because of low level noise and vibration during breaking rocks. To accurately predict the volume and shape excavated by the waterjet, it is important to understand waterjet fracture mechanisms. There have been various theoretical assumptions and approaches in the literature. In this study, waterjet mechanisms are classified into three standards: a mechanism scale, theoretical assumption for a target material, and jet phase. In addition, through a waterjet experimental study for weathered and intact granitic rocks, a fracture shape is observed and analyzed on comparison with the previous mechanisms. As a result, best waterjet mechanisms are selected to explain the fracture pattern of the granitic rocks.