Wannenwetsch is a global specialist in the building renovation sector. Our core competence is high-pressure water blasting.
We offer you efficient solutions with manual cutting equipment and high-performance cutting robots. And the advantage for you is that we can design and construct custom-made cutting equipment for special projects in our in-house development division.
To learn more about the high-pressure water blasting and our equipment technology, browse our references or simply contact us.
Selection of projects that Wannenwetsch has successfully completed.
Repair of fire damage in the Euro-Tunnel
The curved shape of the tunnel tube usually only allows slim cutting beams. To achieve efficient cutting, Wannenwetsch developed a curved beam that offered considerable time savings compared with the conventional method, thanks to its 3 m width.
Concrete renovation & strengthening of waste bunker / Ruhleben waste-to-energy plant
The geometry and intended purpose of the 130 m-long and more than 30 m-high structure placed special demands on the equipment technology. The cutting was performed using a special formwork concept.
Renovation of the P6 multi-storey car park – Zurich Airport
With more than 26 million passengers every year, Zurich is the number 1 airport in Switzerland. The airport is also an international player in terms of quality. Therefore, the chloride-damaged surfaces of the P6 multi-storey car park were overhauled to the highest standards, including the consistent use of certified particulate filters.
Total demolition of diaphragm wall - City-Tunnel Leipzig
A custom design was developed to demolish the solid reinforced diaphragm wall at the “Markt” station. The double nozzle on a movable carrier frame was supplied with 530 litres per minute by two 550 kW-impelled units.
Renovation of Felperbrücke - A13 Brenner motorway
The renovation works on the high-traffic Felperbrücke on the Brenner motorway were completed in three construction phases – with two-way traffic throughout – and posed great challenges to man and machine due to the tight interim and final deadlines.
Renovation of the Inn Canal – Jettenbach / Töging
For the renovation, 570,000 m² of embankments with a consistent gradient of 40° was prepared within 6 weeks for the subsequent works. An in-house developed, multi-nozzle blasting jet blasted the embankments in combination with high-performance telescopic caterpillars
Renovation of the Limfjord Tunnel, Denmark
The Limfjord tunnel is a key link to the Aalborg region. Water penetrated the twin-tube undersea motorway tunnel due to leaky construction joints. The purpose of the renovation was to stop the water penetration and to reconstruct the damaged concrete.
Maintenance of Pöhl Reservoir / Saxony
The structure required restoration due to the severely damaged concrete surface of the water-side dam wall. The remedial works for the dam wall were scheduled in two stages. Firstly, large areas of damage, weathered old concrete were removed by high-pressure water blasting. Secondly, a 20 cm-thick shotcrete facing formwork was constructed.