Horizontal Directional Drill Design

A Horizontal Directional Drill is used to create a pathway for a new pipeline. The Horizontal Directional Drill bores the hole and places the pipe underground at the same time to prevent collapse. Horizontal Directional drilling is used to tackle special engineering difficulties with ease via a trenchless methodology, leaving the protected assets unharmed and the new installation a safe distance from other infrastructure.


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Horizontal Directional Drill Equipment

The Horizontal Directional Drill Equipment used depends on the requirements of the specific project. Factors that affect the choice of Horizontal Directional Drill include the pipe length needed, the diameter and the conditions both above and below ground. The initial Horizontal Directional Drill can be used with a range of other equpiment such as excavators, pumps and hoses which supply fluid to the drill which helps with the removal of material.

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Techniques for Horizontal Directional Drilling

Horizontal Directional Drilling, also known as Direction Boring, is not only used for installing piping, but water/gas/oil lines and power cables too. It can sometimes be required to cross roadways, footways, heavily populated areas, areas where there are environmental concerns and safety issues. The Horizontal Directional Drill is a flexible tool as it can be used within urban areas to implement underground utilities since it avoids disruption and damage at surface level.

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The Horizontal Directional Drilling process

A Horizontal Directional Drill is used to create a pathway for a new pipeline. The Horizontal Directional Drill bores the hole and places the pipe underground at the same time to prevent collapse. Horizontal Directional drilling is used to tackle special engineering difficulties with ease via a trenchless methodology, leaving the protected assets unharmed and the new installation a safe distance from other infrastructure.


How do we design HDD's?

There are numerous pieces of information required prior to design.

We aim to collate all necessary information to provide a safe and economical solution for our clients if it comes to HDD Design. Our specialist teams collect all above and underground information by carrying out full topographical, utility and geotechnical surveys at the drill location. We then enhance the package with our wide knowledge of best practices and our bespoke 3D modelling software allowing us to calculate ground movements in the proximity of the drill, both vertically and horizontally. Once the model is built we fine-tune the launch and reception positions and the drill alignment with the project specific requirements based on the information gathered from the relevant authorities and asset owners, project budget and practicality.

As simple as it seems, the HDD involves numerous risks that a well prepared plan can eliminate. There are several bad practices been circulated within the industry highlighting the dangers of lack or misinformation. One of the main concerns are the existing underground services and structures, therefore it is paramount that a throughout survey is carried out identifying all mentioned obstacles that the drill must avoid. Secondly we must ensure that we consider the risks posed by the drill on the local environment. May it be the public, the aquifer, or the soil above the proposed line. If underestimated, frack-outs can seriously damage or pollute the local environment. Last but not least, delays due to insufficient planning can significantly increase the cost of the drill, postponing the project handover and the further progress of the scheme.

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