Using noise vibration Popular Enmity Section, road extension
section,security neighboring section.
It has an excellent applicability to jointed rock masses under sedimentary rock. Moreover, in case of without jointing rock masses upward sedimentary rock, it is possible to smash effectively a stone using a vibration ripper. Specially, in case of elvan sand type stone, it has an outstanding ability to improve operation comparing with other excavation method.
