Flooding Utrecht

Read all about the project here...


Drilling method: Auger Drilling
Material type: Drainage
Number of drillings: 23 Drillings
Drill length: 575 m
Drill diameters: 110 mm
Principal: Gebr. van der Aa

Customer challenge

In recent years, the municipality of Utrecht has had to deal with heavy rainfall. A lot of rainwater has to be drained off in a short period of time. Especially the basement houses, houses built between 1880 and 1890, in the district Lombok have suffered a lot from this heavy rainfall because of the rainwater that flows into the house. Another challenge in this project was the measurements of the ground. The project has to be carried out in contaminated soil (class 3T). The municipality and residents are working together to make this neighbourhood waterproof.

What was our solution

We have drilled drainage under 23 houses using trenchless technology. By means of Auger Drilling, perforated drainage pipes were drilled under the houses. These are connected to a pit through which the rainwater can be drained.

What were the advantages of this

This method minimises nuisance in a short period of time. The process took about 2 days per house. The only minimal space nuisance was a entry pit (2.5 x 2.5) for the street and an exit pit (1 by 1.5 and 1.20 deep) in the garden of the private house. The result is a well-functioning drainage system so that no more rainwater can be found in the houses.

Do you also suffer from groundwater issues under the crawl spaces? Please contact us

See also:

OFT boring Weesp

OFT boring Weesp

Afgelopen week hebben wij een OFT boring van 56 meter (polymeerbeton Ø400/Ø550) gerealiseerd op station Weesp, dit ten behoeve van aan te leggen droge blusleidingen. Inclusief aanvalskasten voor de brandweer aan beide zijden van het station en brandkranen op de perrons. Om de treinreizigers zo min mogelijk tot last te zijn hebben we met beperkte ruimte een veilige werkplek gerealiseerd, tevens hebben we het drukscherm van damwanden in eigen beheer geplaatst. 
OFT drilling north-east Groningen

OFT drilling north-east Groningen

At the moment we are working on a series of OFT drillings to construct the jacket pipes for the transport of industrial water and drinking water in order to bolster the water supply in the northeast of Groningen. By using more surface water as a source of industrial water, the drinking water sources will be preserved for drinking water in the future. The supply of the pipes (Ø914 and Ø1020 steel) is done in-house, which further guarantees the planning of this project.