Engineering · D.01.2
Directional drilling, pipe ramming and arc bores for crossings with roads, watercourses and railways. We choose the technique, design the bore profile and deliver the permit drawing for the asset owner.
D.01.2Trenchless techniques
Each component can be ordered separately. Together they form one drawing that you see grow in the client portal.
For each crossing we determine which technique fits: horizontal directional drilling (HDD), pipe ramming, arc bore or impact moling. We look at length, depth, soil, pipe diameter and available working space.
ResultSubstantiated choice of technique per crossing
We design entry and exit points, angles, bend radii and cover beneath the obstacle. Existing cables and pipelines are kept at the distance the asset owner requires.
ResultDrilling plan with longitudinal profile and plan view
For crossings with national roads, railways and flood defences, we prepare the drawing and substantiation the asset owner asks for, such as Rijkswaterstaat, ProRail or the water authority.
ResultPermit drawing and substantiation per asset owner
During construction we liaise with the drilling contractor. Afterwards we process the realised bore line into the as-built, showing the deviation from the design.
ResultAs-drilled profile in the as-built drawing
Don’t have everything yet? A proposed route or a question is enough to start.
Everything is stored in your project file in the client portal, also after handover.
A well-designed bore avoids traffic disruption, damage to the surroundings and surprises beneath the obstacle. The profile is fixed before the drilling contractor arrives.
For longer crossings and greater depths, such as under watercourses and busy roads. For short crossings, pipe ramming or an arc bore is often simpler. We substantiate the choice per crossing.
That is set by the owner of the obstacle. Watercourses and flood defences have different requirements from a municipal road. We design to the requirement that applies to that crossing.
Yes. Where the asset owner asks for it, we substantiate the design with calculations to NEN 3650 and NEN 3651, such as pulling force and strength.
Next in the project
D.01.1Route engineeringWe define the route, develop it through VO, DO and UO, and record crossings and interfaces before anyone starts digging.View service
D.01.3CalculationsA design is only buildable if the numbers add up. We calculate trench profiles, cover, settlement and crossings, and record the assumptions.View service
D.02Digital surveyingFrom a single survey to a full 3D picture of the subsurface: we measure, process the data and deliver it in the format you need.View service