Arc-drilling is a variant of Horizontal Directional Drilling. This technique involves mechanical pre-curving of the pipe prior to insertion, in this case an 8” medium transport pipe with a length of 92 metres that was inserted directly into the drilled hole. Two assembly welds were also carried out during the insertion process.
This method allows a considerably smaller radius to be drilled and the required drilling length is shorter.
Click HERE to see the video of this project.