Horizontal Drilling Technology
Horizontal-
Hydraulic Drilling Method (HDD)
Flush drilling offers an innovative and efficient method for installing underground infrastructure. The jetted drilling process is a directional drilling technique for horizontal drilling, also known as Horizontal Directional Drilling (HDD). It allows pipelines to be installed underground without the need to dig a trench. The boreholes can be several hundred meters long. The horizontal jet-assisted drilling rig drills an underground channel and pulls one or more service lines or Conduits into it as it retracts. This method enables fast and precise pipeline installation and is used for various infrastructure lines, such as power or telecommunications.
Advantages of HDD (Horizontal Directional Drilling):
- Minimal disruption: HDD minimizes surface disruption and is ideal for constructing new infrastructure beneath roads, rivers, and other obstacles.
- Flexibility: This technology allows for drilling in various types of soil. The ability to achieve tight radii and different entry angles at the drilling starting point enables new pipelines to be integrated into existing Infrastructure.
- High Drilling Efficiency: Compared to open trench / open cut construction, this method allows pipelines to be installed at high speeds and with minimal space requirements. By eliminating the need for trenches in open trench / open cut installation, existing infrastructure is preserved and surface disruption is reduced.
Application Criteria
HDD Method, Section 6.1.3.3
DA 50–630 mm. It is also possible to install multiple pipes as a bundle.
20-500 m
25 m
50 m
PE-HD, cast iron, steel, local heating pipes
+/- 5% of the installation depth (according to DCA)
Not suitable for free-fall channels. For this application, we recommend our precision pilot pipe tunneling method.
in almost all soils, including stones and heavy rocks; soil classes LN, LB, S1–3, FZ 1–4, FD 1–4
Pressurized sewer lines, water mains, pipelines, district heating lines, gas lines, cables, and much more.
Crossing rivers, roads, highways, natural habitats, open areas, cuts in the terrain, steep slopes, and much more. As well as longitudinal installation at great depths, in narrow passages, and where there are many intersecting lines.
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