What Is Horizontal Directional Drilling and When Should You Use It?

by | Aug 13, 2019 | Safety Products

If you are involved with any type of outdoor construction projects, you may have heard of horizontal directional drilling parts. For certain installation endeavors, it may be beneficial to use this type of drilling in order to install pipes and other types of materials below the ground surface.

What Is Horizontal Directional Drilling (HDD)?

HDD refers to a type of trenchless installation primarily used for cables, conduits, and pipes underground. Special horizontal directional drilling parts are used in HDD because the construction area is much more shallow than other types of construction projects. Typical parts include a directional drilling machine as well as related attachments.

Is HDD Right for the Project?

Are you going to install a pipe more than 5 feet below ground? Is the piping underneath a water table? Do you believe the soil to be unstable? Each of these reasons could lead you to choose HDD over traditional trenchless installation. Other reasons for installing with HDD include needing to install near a residential area or needing to install a pipe in a heavily congested area.

Stages of HDD

Correctly done, HDD has three stages:

  1. Pilot hole: This stage involves drilling a pilot hole that should be small in diameter.
  2. Pre-reaming: This stage involves making the hole larger in order to install the pipes or other products.
  3. Pipe pullback: This step is achieved through attaching the drill rod and reamer to a swivel. Drilling fluid is also used as a lubricant for the product as it is pulled into the hole.
    Although HDD is a trusted way to install complicated projects, you will still benefit from professional expertise. This includes making sure that you have the right horizontal directional drilling parts for the job. To make sure that you are parts are right for the job, visit Build It Right.

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