Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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A Study on the Vibration Reduction of Borehole by the Receive Distance

수진 거리에 따른 방진구의 진동 저감 연구

  • Song, Jeong-Un (Department of Mineral Resources & Energy Engineering, Chonbuk National University) ;
  • Kim, Seung-Kon (Department of Mineral Resources & Energy Engineering, Chonbuk National University) ;
  • Hong, Woong-Ki (Department of Environmental & Chemical Engineering, Seonam University)
  • 송정언 (전북대학교 자원.에너지공학과) ;
  • 김승곤 (전북대학교 자원.에너지공학과) ;
  • 홍웅기 (서남대학교 환경.화학공학과)
  • Received : 2014.04.07
  • Accepted : 2014.04.30
  • Published : 2014.06.30
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Abstract

The purpose of this study is to estimate the vibration reduction effect of the borehole which is controlled the vibration propagation in the ground. For this study, we measured the vibration velocity before and after the borehole installation. The results are as follows: The peak particle velocity(PPV) and peak vector sum(PVS) was reduced by the borehole. And also, the deviation of vibration velocity before and after the borehole installation showed large values in longitudinal and vertical component depending on the receive distance, and increased depending on the size of vibration energy. Finally, the vibration isolation efficiency was 25~35 percentage at 1.5m receive distance, and was 4~14 percentage at 3.0m receive distance. It was found that the vibration isolation efficiency was good in small vibration energy, but was not good at long receive distance.

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References

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