Pressing techniques

Our pressing techniques can also be used for shifting tunnels. When moving with sliding conveyors is not possible, this technique is a good option. Pressing tunnels can be done in an open trench or excavation and through the open ground. Civiele technieken deBoer has experience with both methods. Nationally and internationally.

Contact

Press tunnel 4,800 tons - 30m

Railway underpass Deventer (NL)

Press tunnel 8,400 tons - 45m

Coulsdon (UK)

Pressing station tunnel 6,600 tons - 55m

Tilburg Station (NL)

2 press tunnels 1,550 tons - 24m | 2,400 tons - 34m

Nantes (FR)

The power of deBoer

Our pressing techniques

Need press technology?

Press technology comes into play when a tunnel section cannot be lifted, for example when there is an increased risk of the floor sagging. Or when the railway can't be closed. Or the tunnel section is too heavy for the ground stresses that occur when using sliding tracks. We are happy to take a look!

Equipment

To arrive at exactly the right method, you need to have all the 'tools' that are needed. For example, deBoer has 14 self-developed 600-ton press cylinders with a stroke of 2.2 m. A very powerful press set! But we also have a lot of knowledge and experience in this area. These are also 'tools'. If it doesn't exist, we'll create it!

Minimize disruption

We develop execution methods that have minimal impact on the environment, time and money. In this way, we execute assignments with minimal disruption to infrastructure, mobility and the environment. Our press techniques can play an important role in this.

deBoer approach

A special technique

Pressing tunnels involves a number of important aspects. We are familiar with them. And we have experience with them. In order to find the best technical and economic method for the project, we analyse these aspects. For example, consider the existing subsoil, the structure to be moved, special requirements for the work floors, guides, the barrier structure, etc. Bringing maximum added value: that is what we do with this.

Knowledge hot-spot

The earlier we are involved in such projects, the better. This method requires special provisions in the final and auxiliary structures. This must be taken into account during tenders, so that these interfaces can be optimally included in the design. Because we have been involved in many projects throughout Europe for decades, we are familiar with a great many techniques and methods. A kind of hotspot of knowledge in the field of the most diverse construction methods.

In depth with deBoer

When applying pressing techniques, you have to go into depth. Whether it concerns pressing through the open ground or in an excavation, a small tunnel or a very large one; all relevant success factors and important conditions will have to be highlighted. There are show-stoppers lurking. But also interesting opportunities!

Deep dive?

That's why deBoer

Always a suitable solution

There are many applications in the world of pressing technology. That is why we need to be able to think broadly and have a 'set of solutions'. The development and innovations at deBoer lead to smartly designed equipment that generates its value during execution. This allows us to stay ahead and contribute to the success of your project.

  • Our pressing installations can always be adapted to the specific situation. Whether it concerns the shifting of a tunnel or another object; customization is usually required. We know that better than anyone.
  • Our self-developed press cylinders have a capacity of 6,000 - 6,800 kN each and have a stroke length of > 200 cm.
  • Technical points of attention: the landing structure | buckling stability | introduction forces | guides | height position | friction-reducing measures | blade constructions | logistics

Tunnels pressed

>22

Heaviest

8,400 tons

Smallest

340 tons

Press capacity

>16,000 tons

Number of cylinders

14