The global construction industry risk levels have risen for the fifth consecutive quarter, according to Timetric’s Construction Intelligence Center (CIC).
A consortium of Strabag AG, Jäger Bau and G. Hinteregger & Söhne Baugesellschaft has won a contract to provide the tunnel driving works for the Maria Stein pressure flow tunnel of the Gemeinschaftskraftwerk Inn (GKI) power plant along the Swiss-Austrian border region.
Strabag’s Swiss subsidiary has secured an €100M contract for the construction of an office building and a production building for Siemens in Zug, Switzerland.The contract, awarded by Siemens Real Estate, will be executed on a design and build basis with Strabag AG Switzerland serving as the main contractor for the project.The office building will be constructed using building information modelling (BIM), which guarantees a level of security in terms of cost, design and scheduling.The seven-storey facility will offer 31,700sq m of space on every floor for mechanical/electrical, seminar and conference rooms, as well as an underground car park.The four-storey production building will include production halls, laboratories and offices on 24,000sq m of floor area. An automated transport and storage system will be included on the basement level.STRABAG’s CEO Thomas Birtel said: “BIM.5D is the future of building. The aim of BIM is to digitally collect, combine and link all relevant data associated with the entire building lifecycle. This creates a building data model that basically is a giant synchronised database.“The model simulates for all involved how the building will change as construction progresses, which materials will be required in which quantities at what time, and what consequences could arise from late changes to the design.”Both buildings are to be completed in June 2018.
After the tunnel’s first blast in the main shaft 17 years ago, the Gotthard base tunnel in Switzerland opens today. To celebrate the completion of the world’s longest rail tunnel, the country is holding an opening ceremony.1,200 guests have been invited for the festivities that are expected to cost €8M. German chancellor Angela Merkel, French president François Hollande and Italian prime minister Matteo Renzi are among the guests of honour at the ceremony. At the weekend, additional opening events are expected to attract 50,000-100,000 visitors.The longest tunnel — named after the patron saint of travelling merchants, St Gotthard— runs through the Alps, between Erstfeld, Uri, and Bodio, Ticiano. Trains using the €11bn rail tunnel won’t go into service until 11 December 2016, when it will be fully operational. Until then, test runs will be conducted at the rail line.When fully operational, 260 freight trains and 65 passenger trains will travel through the two-way tunnel each day, reducing the journey times between Zurich and Milan from more than four hours to just two-and-a-half hours. Travel through the tunnel itself will take just 20 minutes, with a stop at the control station of Sedrun.Gotthard has overtaken the 53.9km Seikan Tunnel in northern Japan as the longest rail tunnel in the world, demoting the 50.5km Channel Tunnel between Britain and France to third place.The Gotthard base tunnel in numbers: • Start of construction works: 1999• Length: 57.09km• Total length of tunnels: 151.84km• Diameter of rail tunnels: 8.5m• Highest elevation: 549m• Depth: 2,300m• Mountain rock excavated: 28.2M tonnes• Concrete used: 131,000cu m• Workforce: up to 2,600• Maximum train speed: up to 250kph• Cost: €11bn
The opening of the world’s longest rail tunnel is set to take place as planned on 1 June 2016.The CHF12.2bn ($12.3bn) Gotthard base tunnel, which measures 57km in length, runs under the Swiss Alps and is designed to reduce travel times across Europe. Construction of the tunnel started in 1999, 17 years ago, and since then 28.2m tonnes of mountain rock has been excavated during the tunneling works. Trains will be able to travel in the tunnel at speeds of up to 250km per hour, reducing the journey times between Zurich and Milan from more than four hours to just two-and-a-half hours.
Implenia has secured a contract valued at over CHF100m ($101.2m) to construct a new landmark for North Zurich, Switzerland.The company has won the total contractor mandate by making use of digital 4D Building Information Modelling (BIM) in the tender phase. The scope of the contract, awarded by SBB Immobilien, will include the construction of the Andreasturm building. The 80m high building, located next to the railway station in Oerlikon, Zurich, has been designed by architects Gigon/Guyer.The development will include about 20,000 sq m of office space, ample room for shops, cafés and restaurants, and a direct link to the platforms and station underpass. It will also be energy efficient, and will comply with the DGNB Platinum label standards adapted by the Swiss Sustainable Building Council. Construction work on the project is expected to commence in April 2016.
The Ceneri base tunnel is an integral part of the New Rail Link through the Alps. Sally Spencer reports.