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Increase in the shipping capacity of the Kiel Canal (Nord-Ostsee-Kanal): Pipe jacking for a pipeline tunnel 35 m below ground during ongoing lock operation.
High quality and in time: four cooling water pipelines in pipe jacking drive for a new coal-fired power plant in Wilhelmshaven.
Parallel drive with two TBMs with EPB shields for the extension of the Karlsruhe – Basel motorway.
The new underground line provides a connection between the Moosach district and the „Olympia” shopping centre which was also built by W&F Ingenieurbau.
Railway tunnel provides a modern connection of Zaventem airport close to Brussels to the European high-speed railway system and to E 19 motorway.
16.2 km long railway section connects both halves of the city of Antwerp on the banks of the River Schelde and creates a new railway line under the river for more than 100 trains per day.
Tunnel construction in a very restricted area requires a multitude of construction methods to carry out the structure with as little interference as possible with the neighbourhood.
The North-South link Antwerp is part of the Brussels-Amsterdam high-speed line. The project comprises the reconstruction of the existing accesses, the construction of a passage under the main station as well as the construction of two tunnel sections from „Astridplatz“ to „Damplatz“.
Railway tunnel and stations for the London railway system in one of the most advanced railway projects in Europe.
Simultaneous drive of two tunnel tubes with two EPB shields for the high-speed Channel Tunnel Rail Link.
Tunnel for a gas pipeline under Scruwaddacon Bay, Ireland was awarded the prize for best environmental initiative 2015 during the Tunnelling Awards at the International Tunelling Association.
A clever solution: What is normally a road tunnel turns into a storm water relief tunnel during floods. The storm water management and road tunnel in Malaysia is the answer to two challenges.
4 km tunnel for a 48-inch gas pipeline between Rysum (D) near Emden and Midwolda (NL).
A first in the Netherlands - TBM drive in the city centre: Hubertus tunnel, the longest inner-city road tunnel in the Netherlands, completes the Northern “Randweg” of The Hague.
The Zurich main station - Altstetten - Oerlikon cross-city line forms the central part of the West- East-axis of the Swiss railway lines. The Weinberg tunnel is the centrepiece of the cross-city line and connects the new through station “Löwenstraße” in Zurich with Oerlikon station.
1,700 m above sea level: In the Linthal Project 2015 the inclined tunnel with an incline of 24 % compensates an altitude difference of 900 m in the high mountains of Switzerland.
The 3.1 km long Oenzberg tunnel is part of the new Mattstetten-Rothrist railway line in Switzerland. This railway line improves the connection between Bern and Olten.
2.5 km long underground railway line in a double-tube underground track system for the North-East-Line (NEL) in Singapore with two stations, two underground passages and a flyover.
Biggest individual construction project within the scope of the traffic project Deutsche Einheit (German unity) 8.2 New section Erfurt – Leipzig/Halle.
Greatly varying geology required different driving methods during the construction of the Uetliberg Tunnel in Switzerland. The 4.4 km long road tunnel connects the Birmensdorf bypass with the existing national road Zurich-Chur.
Rehabilitation of the water reservoir ensures the flood protection in the Isar valley. The construction section comprises the construction of the seepage water tunnel as well as the access structures at both ends of the tunnel.
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 longest motorway tunnel in Germany is the centrepiece of the new A 71 federal motorway from Erfurt to Schweinfurt.
The Silberberg railway tunnel in the Thuringian Forest is part of the new Ebensfeld – Erfurt railway line. The new line connects the old and the new federal states.
The U6 underground line connects the district of Möhringen with the industrial area “Am Schelmenwasen”. The double-track underground railway tunnel crosses below the industrial area „Fasanenhof”.
Rehabilitation of the head race tunnel with downstream access tunnel and bypass tunnel
A double-lane motorway tunnel with a length of approx. 3 km forms part of the new motorway section of ‚Route du Nord' in the biggest infrastructure project in Luxembourg. The two tubes were carried out with an incline of nearly 5%.
The approx. 2 km long „Stafelter Berg“ Tunnel, north of Luxembourg city is part of the new motorway section of ‚Route du Nord‘ and consists of two double-lane tubes. The tunnel drive was carried out conventionally and with the drill and blast method.
The centrepiece of the 125 km long, double-track high-speed line between Graz and Klagenfurt is simultaneously the key project for the Baltic-Adriatic-Corridor. The Koralm Tunnel improves the traffic link between Graz and Klagenfurt.
A milestone for the Koralm railway line from Graz to Klagenfurt: the double-track tunnel with a length of 1.7 km forms the centrepiece of this construction section.
The Roppen tunnel between Innsbruck and Landeck in Austria was made safer by the construction of the second tube. The 5,069 meter long tunnel was driven conventionally.
The double-lane road tunnel is the centrepiece of the Völkermarkt bypass. The town centre is relieved from heavy traffic which in turn means a better quality of life for the population.
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 the construction of the Vienna underground line 2 extensive dewatering works with approx. 270 wells and approx. six million pumping hours were required. An electronic monitoring and control system made the measure safe.
Due to an advantageous layout of tunnel portal and tunnel excavator is was possible to do without shunting bays and laborious shunting during the construction of the single-track railway tunnel.
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.
Below the protected monument, the „Kaufhof“ building at Kö in the heart of Dusseldorf, a tunnel with a connecting platform to the existing railway station „Heinrich-Heine-Allee” is built, which is exactly situated in the middle of the new “Wehrhahn” line.
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.
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
Second Main Line of Munich Suburban Railway Germany
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.
Rehabilitation of the head race tunnel with downstream access tunnel and bypass 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 Roppen tunnel between Innsbruck and Landeck in Austria was made safer by the construction of the second tube. The 5,069 meter long tunnel was driven conventionally.
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.
A former industrial site is converted into a new city district with a new port, lake and bridge structures.
Works clearly within schedule, good quality and cost reduction: convincing facts for the client during the construction of the sewerage pumping station.
A listed property of the German Federation was rehabilitated without interrupting operations.
Massive construction – filigree appearance characterizes the new car dealership in Berlin-Spandau.
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.
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.
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.
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.
Sustainable and low priced energy production by thermal recycling of refuse-derived fuel conserves fossil resources.
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.
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.
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.
Strengthening the existing flood protection dyke with a one-phase cut-off wall and guide walls.
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.
