Trenchless installation methods

Implenia Special Foundations Trenchless activities cover specific areas of foundation engineering and tunnelling, from planning and consultancy to the execution of both complex and singular construction tasks and measurement technology.
Here you can see various solutions to tasks in construction projects carried out by Implenia Special Foundations Trenchless.

Trenchless installation methods provide a way to install service lines in areas that are difficult to reach from the surface.

Trenchless construction method (Trenchless) for pipeline construction:

Drifting by means of an unmanned micro-tunnelling machine
The tunnel boring machine is driven from the starting shaft to the target shaft by pressing the pipe string.
Most common machine type: Automatic tunnelling unit wet (AVN)

Minimal interference with the surface (space requirements, traffic disruption, residents)
Undercrossing of obstacles instead of their removal (works pipelines, foundations)
No groundwater lowering necessary
Low-settlement construction method, excellently suited for inner-city, confined spaces and sensitive buildings
Can be used in almost all building soils
Highest tunnelling safety thanks to liquid-supported working face
Thanks to remote control, the ideal technology for tunnelling, even in the non-accessible diameter range
Precise control for tight radii and vertical and horizontal curves
Very long pipe jacking distances possible thanks to intermediate jacking stations