 |
|
|
Description Horizontal Directional Drilling (HDD) is cost effective trenchless method to install underground utilities/pipes or soil remediation lines with little or no surface disruption. This technology is ideal for environmentally sensitive areas, golf courses, airport runways, railroads, water ways, busy roadways, residential & commercial areas or where it is difficult or impossible to use conventional trenching. Directional Drilling can be done in all types of soil, dirt, sand, clay, gravel, cobble, glacial till, shale and rock. HDD begins from the surface at an entry angle between
5 and 20 degrees and is tracked along a predetermined path with a locating
system. The drill string is accurately directed toward a horizontal
target depth and the final exit point. Once the drill string reaches
the exit location or surface a back reamer is attached to the drill
string and pulled back to the entry point. This process enlarges the
borehole for the installation of the utility/pipe. To achieve the appropriate
bore size it may be necessary to perform several back reaming operations.
The utility/pipe is pulled back once the borehole is enlarged to the
appropriate diameter (typically 1 ½ times the outside diameter
of the utility/pipe being installed).
2. Elimination of costly and time-consuming excavation and restoration associated with open trenching, installations can be performed in less time. 3. No dewatering is necessary when working below the water table, subsequently reducing costs and construction time. 4. Not affected by seasonal temperature fluctuations since there is no need to backfill and compact soil materials to complete the installation. 5. Less delays due to weather conditions. 6. No need to close roads or redirect traffic around the construction site, thus maintaining normal traffic patterns and access to businesses and residential property. 7. An advanced technology that is proven to be less disruptive, faster and more cost effective than all other methods of underground construction.
Advanced Underground Services continues to prove itself as an innovative leader in the trenchless industry. We have the capability to perform directional drilling in environmentally sensitive areas, congested roadways, river/stream crossings, railroads, or other more challenging locations. Our equipment is state-of-the-art computer controlled to assure accuracy and can handle nearly any size or length bore. Our Drill operators have the experience, training and certification that make them the best in the business, regardless of the location or soil conditions. We are committed to maintaining our company missions and values and achieving customer satisfaction. We look forward to discussing, and bidding, the potential
horizontal directional drilling projects your company may require. Call
or email our sales team and see why we are the number-one choice
for all your trenchless needs.
|
|
Copyright © 2006 Advanced Underground Services. All rights reserved. |
|
 |
|
