HDD RIGS
Horizontal directional drilling (HDD) is a trenchless construction method used to install pipes under-ground without disturbing the ground surface. The drill is launched from one end of the designed bore path and retrieved at the other end, and except for the launch and retrieving spaces above ground, the entire process takes place underground, out of sight.
HDD has become a choice alternative to conventional pipe-laying methods that require opening up the earth’s surface up to the depth of installation for the entire pipeline route.
Horizontal directional drilling is ideal for use where trenching needs to be avoided such as under a railroad, an embankment, highway, and beneath lakes and rivers. With advanced HDD steering tech-nology, it is also now possible to install pipelines under busy city streets