Horizontal directional drilling for natural gas pipelines
We carry out trenchless crossings for polyethylene or steel natural gas pipelines under roads, railways and rivers, without open trenches.
Gas distribution networks often have to pass under roads and watercourses. Horizontal directional drilling takes the pipe across without cutting the road, and for short crossings with a steel casing we also use pipe ramming.
How we work
- We check the route and existing utilities, on plans and by radio detection.
- We drill the pilot bore, tracked from the surface and corrected in real time.
- We ream the bore to the size the diameter requires and pull in the pipe or ducts.
- We reinstate the pits and hand over the work.
Pipes and casings
We pull polyethylene pipes directly through the bore, or first install a steel casing when the permit requires it, usually under railways and major roads.
Design and conditions
We work to the network design and to the conditions set by the distribution operator and by the owners of the obstacles crossed.
The right method
For long or curved routes, horizontal directional drilling. For short, straight crossings with a steel casing, pipe ramming or pipe jacking.
What we need for a quote
- the location and the obstacles to be crossed;
- the length of each crossing;
- the network, pipe material and diameter, or the number of ducts;
- the geotechnical study and site plan, if available;
- the desired deadline.
How deep is the pipe under the road?
As deep as the design and the road authority’s permit require. Directional drilling keeps the required level along the whole route.
Do you have a gas pipeline crossing? Request a quote
Send us the location, the obstacle, the length and the pipe diameter. The assessment and quote are free.