터널굴착 시 와이어-쏘를 적용한 자유면 형상에 따른 발파진동저감효과

This study focus on analysis of blasting vibration reduction during the process of blasting. Vibration-free method has been developed in the existing that is poor in efficiency compare to Blasting & Drilling method. Blasting & Drilling method can inflict damage around some rock structure. So new technology development is needed that reduce blasting vibration and noise. In this study a dynamic numerical analysis has been performed in order to confirm the effect of some shape free surface of wire-saw in tunnel blasting process.