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Directional drilling, also referred to as horizontal directional drilling (HDD) is a minimal impact trenchless method for installing underground utilities such as pipes, conduits or cables, from point A to point B in a relatively shallow arc or radius along a prescribed underground path using a surface launch drill rig. HDD offers significant environmental advantages over traditional open-cut methods. The technique is routinely used when conventional trenching or excavation is not practical or when minimal surface disturbance is required.
Directional drilling/HDD is generally accomplished in 3 principle phases. First, a small diameter pilot hole is drilled along a prescribed directional path from one surface point to another. Next, the bore created during the pilot hole drilling is enlarged to a diameter that will facilitate the installation of the desired pipeline. Lastly, the pipeline is pulled into the enlarged hole thus creating a continuous underground pipeline exposed only at the entry and exit points. HDD can be utilized to cross any number of surface obstacles, including, roadways, runways, railways, wetlands and rivers of varying sizes and depths.
There are many benefits to horizontal directional drilling including being time-efficient, cost-effective and safer than traditional trenching methods. Below we’ve listed just four reasons why you should consider horizontal directional drilling for your next project.
As there are only two small pilot holes at either end of the drill stern, no grass, driveways or footpaths are disrupted in the drilling process. This means you won’t need to spend time reinstating the job site to its original condition because there is little to no damage done to the environment. There is also no need to remove trees or vegetation along the boring route which is an advantage in environmentally sensitive areas.
When performing HDD there is rarely a need to close roads or footpaths like when conducting open cut methods. This translates to less disruption to traffic, pedestrians, the local community and the environment during the drilling process.
HDD is generally faster than open cut trenching and can be utilised in urban areas where space is limited. HDD also allows the added ability to do around or under obstacles.
4. Flexible and cost-effective
With the ability to drill at any depth required and to work in most ground conditions including extremely hard rock, HDD can offer varying solutions while eliminating varying issues. HDD is great for the community and the environment, and almost always reduces the time and costs of completing the project.
With over 25 years of experience under Directhitt and 35 years of expertise in the HDD industry, we offer consulting services to project managers and developers as well as other HDD providers on projects of all sizes. Directhitt frequently consults on best practices, strategy and approach for difficult and A-typical bores, as well as providing insights into tooling and setup to ensure your project runs on time and on budget.
We provide a range of directional drills to suit every project need.
We can provide horizontal directional drilling services across Australia. Popular areas we travel to include Cairns, Toowoomba, Brisbane and the Gold Coast, Sydney, Melbourne and Perth. However, we travel across the country including:
Get in touch with the team of horizontal directional drilling contractors at Directhitt today to discuss underground planning for your next project. We assist with technically complex and environmentally sensitive drilling projects, so reach out today to discuss yours. We can be contacted by phone or you can detail your needs in our online form.
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24 Quinns Hill Road East, Stapylton QLD 4207
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