Jet Grouting
Gentle and versatile jet grouting
Jet grouting is a flexible technique where the solution is tailored to each individual project.
In simple terms, jet grouting involves creating a soil-cement mixture by injecting cement and water into the local soil by high-pressure fluid injection. The resulting product is a concrete-like material using the in-situ soil as aggregate.
We have experience from various types of projects where jet grouting has proven to be the right solution. The method is very flexible and offers a number of possibilities within:
We have a large fleet of machines operated by experienced and competent personnel. Together we can help find the right solution for your project.
Some boreholes place extra high demands on precision. We carry out various types of complicated drilling for various purposes. These can be vertical, horizontal or inclined boreholes, long or short boreholes, with or without casing.
With our system, we can trace the drilling route all the way and correct for any deviations. In this way, we can carry out the work with very high precision.
For advanced and demanding drilling, we have several methods to choose from. The right solution will depend on local conditions and must be adapted to each individual project.
We carry out various types of injection both in loose masses and rock, depending on what is required by the project:
Here we are talking about drilled concrete piles without mass displacement. These normally have a diameter between 750 and 1500 mm (or larger) and are often called secant piles when they are installed as a continuous pile wall.
This is usually carried out with overlapping drilled piles where every other pile is reinforced and the center distance is approximately 0.7 – 0.9 times the pile diameter.
Alternatively, they can also be installed as tangent piles, or in combination with jet piles. They can also be dimensioned to take up vertical loads.
During the execution, a temporary casing is first drilled down. The masses inside are then removed with a grab, auger or another special tool.
A reinforcing cage is usually placed in the empty guide pipe before everything is cast again with concrete, typically as underwater casting. During casting, the casing is gradually pulled up and the concrete hardens in the ground.
