| 摘要 |
A drilling equipment and a method is intended for horizontally boring rocks with a low bench height. The drilling equipment can be used as an accessory to an ordinary dredger or the like. The whole drilling equipment is arranged to turn in a plane parallel to the plane of the brackets of the dredger's boom, and the drilling machine itself together with its drill-propulsion unit is arranged to turn in a plane perpendicular to said brackets' plane. These turnings are preferentially effected by hydraulic power from the dredger. |
