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Due to swelling events and the associated heave and damage to the tunnel inner lining, it was planned to install protective netting in the area of the tunnel roof and the upper side walls.
6 km railway tunnel from Stuttgart central railway station to Bad Cannstatt as part of the large-scale project „Stuttgart 21“.
The Henndorf bypass lead to a noticeable relief of traffic congestion. Centrepiece of the bypass is the double lane 2,150 meters long road tunnel, which is now used by approx. 20,000 vehicles per day.
During extension of the Pyhrn motorway, the Gleinalm Tunnel is provided with a second tube. This makes the motorway safer, since there will be no oncoming traffic in the tunnel.
The extension of the Klaus tunnel string with the 2nd tubes on the A9 Pyhrn motorway in Austria means the end of oncoming traffic and thus provides better safety for 18,000 drivers per day.
The new hydroelectric power plant supplies sustainably produced electricity for approx.100,000 households without emitting pollutants in Tyrol and Engadin. Power house and power descent were built by Wayss & Freytag Ingenieurbau.
The long-expected bypass in the Swabian town of Darmsheim will ensure an improved quality of life, since HGV traffic with approx. 23,000 vehicles will not pass through the town in future.
1 two-lane road tunnel and 1 bridge, total tunnel length 100 m, length of the total section to be built by us under the contract: approx. 520 m
Foot and cycle path tunnel, length 114.77 m, max. clear width 6.45 m, clear height approx. 4.22 m.
single-track railway tunnel with a widened section allowing the railway line to be split into 2 tracks, 14 trough blocks, 13 tunnel blocks, total length 353 m.
Innercity road tunnel in the heart of Dusseldorf creates new space for urban living
60.000 m² coherent park area for approximately 40.000 inhabitants – a street tunnel makes it possible.
A special procedure allowed for blasting operations with ongoing traffic on BAB 8
The 2,800 m long, inner-city tunnel using both bored pile-cover construction method and open construction method relieves a central traffic junction in Munich.
Retained Cut constructions remove bottleneck in main transportation network in northern Hamburg
Tunnel and ramp structure below the groundwater table connects central station and Bayerischer Bahnhof in Leipzig
The most demanding contract section was executed underneath the historic central station building during full traffic.
Simultaneous drive of the twin tunnel tubes with two slurry shields for the new and upgraded section of the German Railway line Karlsruhe-Basel in Rastatt. With 5,000 m³/h, this is one of the largest volumes of excavated material removed worldwide.
The simultaneous execution of various construction works in combination with perfect coordination and effective interaction led to a time saving of 1.5 months and accident-free construction. That convinced the client.
Alternative proposal for a new sewerage pumping station led to a reduction in construction period and cost as well as an increase in work safety. It replaces old pumping stations which had fallen into disrepair at the Berlin Adlershof science and research centre.
Massive construction – filigree appearance characterizes the new car dealership in Berlin-Spandau.
A listed property of the German Federation was rehabilitated without interrupting operations.
Works clearly within schedule, good quality and cost reduction: convincing facts for the client during the construction of the sewerage pumping station.
A former industrial site is converted into a new city district with a new port, lake and bridge structures.
Sustainable and low priced energy production by thermal recycling of refuse-derived fuel conserves fossil resources.
In two incineration lines annually 300,000 tons of waste are disposed of in an environmentally friendly manner. In this way 170 million kWh electricity and 300 million kWh district heating for approx. 44,000 households in Magdeburg are generated annually.
The 178 m high hyperbolic cooling tower of the Datteln power plant is based on 36 radial supports. The shells are built of concrete with an increased resistance to acids.
2550 MW district heating output and 1054 MW electrical net output – these are the main parameters of the Datteln power plant.
The twin unit of the coal-fired power plant has a total gross electric output of 2 x 820 MW. This output covers the demand for electricity of nearly the whole city of Hamburg.
A completely new hospital with six floors: 21,000 square meters for 285 beds and seven operating theatres.
The construction of a new three-storey hospital using the reinforced concrete skeleton construction method will score with regard to energy efficiency, since the modern, optimized and functional hospital consumes significantly less energy.
In the course of Ostseeautobahn BAB A 20 (A20 Baltic Sea Motorway) As part of the traffic project “Deutsche Einheit” (German unity) two bridges on the A 20 motorway form a further link between the old and new federal states.
The bridge was completed 20 months in advance of the agreed deadline as a result of a clever construction concept.
„Himmelsleiter“ (stairway) over the River Wupper connects Leverkusen districts in accordance with the latest safety requirements and provides an improved flood runoff.
New arched bridge updates important traffic connection and improves overstressed infrastructure in the city of Kiel.
Metrostop Mater Stop in Dublin, Ireland has been constructed with diaphragm walls.
Strengthening the existing flood protection dyke with a one-phase cut-off wall and guide walls.
Approx. 90,000 m³ diaphragm walls have been built for the construction of Second Waaslandhaven Lock at the Antwerp port in Belgium, the world’s largest lock.
Sealing wall additional safety measure for a granulate landfill for granulated material from melting chambers from coal-fired power plant block-units.
Extensive rebuilding and redevelopment works in a 5 + star hotel in the heart of Munich without interrupting operations.
Rehabilitation and rebuilding of the former „Senatssaal“ (parliament hall) of the Bavarian parliament in the historic Maximilianeum.
The extension of the Northern Court in “Passive House” standard creates a modern work environment in the Bavarian parliament, the historic Maximilianeum.
