| 摘要 |
<p>According to one embodiment of the present invention, a drilling guide apparatus setting a path of a drill while a user drills concrete slab to repair a crack between a railroad tie and the concrete slab. The apparatus comprises: a plate having a planar shape to enable the user to support the plate with a foot of the user, wherein an opening is cut in a center portion of a front side and an insertion hole is formed in the rear side of the opening and tie support units coming in contact with the tie are formed on both sides of the opening; a guide pipe rotationally coupled to one side of the plate; and a fixed support rotationally coupled to the other side of the guide pipe and inserted into the insertion hole.</p> |
