Horizontal Directional Drilling

Horizontal Directional Drilling

Horizontal Directional Drilling or HDD is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore path by using a surface-launched drilling rig, with minimal impact on the surrounding area.

Advantages

  • Short, medium or long lengths of pipe can be installed without intermediate pits
  • Pipes can be installed either straight or curved to steer clear of obstacles
  • By boring underground the working area is confined to points of entry and exit only
  • No disruption to road, river or rail traffic and no scarring of the landscape
  • Equipment works from surface with no need for deep excavations
  • HDD is quick and in many cases has lower overall costs
  • HDD is unaffected by surface obstacles
  • Can be used to install pipes in changeable ground conditions

What is Directional Drilling?