수진 거리에 따른 방진구의 진동 저감 연구
A Study on the Vibration Reduction of Borehole by the Receive Distance
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초록
The purpose of this study is to estimate the vibration reduction effect of the borehole which iscontrolled the vibration propagation in the ground. For this study, we measured the vibrationvelocity before and after the borehole installation. The results are as follows: The peak particlevelocity(PPV) and peak vector sum(PVS) was reduced by the borehole. And also, the deviation ofvibration velocity before and after the borehole installation showed large values in longitudinaland vertical component depending on the receive distance, and increased depending on the sizeof vibration energy. Finally, the vibration isolation efficiency was 25~35 percentage at 1.5m receivedistance, and was 4~14 percentage at 3.0m receive distance. It was found that the vibration isolationefficiency was good in small vibration energy, but was not good at long receive distance.
Abstract
The purpose of this study is to estimate the vibration reduction effect of the borehole which iscontrolled the vibration propagation in the ground. For this study, we measured the vibrationvelocity before and after the borehole installation. The results are as follows: The peak particlevelocity(PPV) and peak vector sum(PVS) was reduced by the borehole. And also, the deviation ofvibration velocity before and after the borehole installation showed large values in longitudinaland vertical component depending on the receive distance, and increased depending on the sizeof vibration energy. Finally, the vibration isolation efficiency was 25~35 percentage at 1.5m receivedistance, and was 4~14 percentage at 3.0m receive distance. It was found that the vibration isolationefficiency was good in small vibration energy, but was not good at long receive distance.
참고문헌 (13)
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