The International Society for Trenchless Technology
- Ram-assist Technologies
-
In this group of hybrid methods, trenchless drilling or tunnel boring or pipe installation techniques are enhanced by adding impact energy or hammering assistance to the basic method. Typical applications include:
- rock drilling techniques using a hammer drill for HDD applications
- pipe installation assist for HDD (or pipe bursting) using hammering or pipe vibration to reduce pipe friction
- a combination of continuous pipe jacking force with percussive ramming.