SCIA User Contest 2007-complete

48 SCIA User Contest 2007 • Category 2 • CAD Engineering CAD Engineering 2 Witteveen+Bos Address Leeuwenbrug 8 • 7411 TJ Deventer (NL) Telephone +31 570 69 79 11 Fax +31 570 69 73 44 Contact Mr ing. A.H. Deekens / Mr O.J. Ouwerkerk Email [email protected] Website www.witteveenbos.nl Witteveen+Bos project specialists Reliable, professional, innovative and friendly: these are the four characteristics that qualify Witteveen+Bos, the consulting engineering company that has been involved with innovative and high-profile projects in the Netherlands and abroad for more than sixty years. Witteveen+Bos supplies consulting and engineering services for projects in the water, infrastructure, environment and construction sectors. Typically we use a multidisciplinary approach where specialists from various sectors work jointly on the solution of complex assignments. Clients Our clients are governments, commerce, industry and various types of joint ventures. We serve them from eight branches in the Netherlands and five abroad (Indonesia, Kazakhstan, Latvia, Romania and Serbia). Our 700 employees are all specialists who are able to deploy all their expertise in their work. For us, partnership is the keyword. Personal and fundamental development are also key issues, because our work continually calls for new knowledge and new responsibilities. Specialisms The collaboration between specialists and the pooling of knowledge, experience and management expertise provides our clients with substantial added value. To enable us to continue to guarantee this added value we make substantial investments in the development of our employees’ expertise. This is the only way we can realise our ambition: to be at the top of the market. High-profile projects Examples of high-profile projects where Witteveen+Bos has been involved are the North/South metro line in Amsterdam, the development of man-made islands for oil and gas winning in the Caspian Sea, land reclamation in Indonesia, the AmsterdamWest sewage water purification project, construction of the Delft railway tunnel, development of systems to allow the passage of fish alive at pumping-stations, the master plan for the centre of Amsterdam International Airport, creating space for the River projects, various large and diverse contracts in Central and Eastern Europe and a large number of other projects in the Netherlands and abroad. Innovation Innovation in projects has been one of the most important foundations of the success of Witteveen+Bos. A few examples of innovative developments are the social costs and benefits analysis, ‘Charted Dutch safety levels’, ‘Partners for Roads’, UV water treatment in Andijk and Berenplaat and the decontamination of soil at railway yards. Realisation Geeuwaquaduct Sneek The structural ‘Geeuw’ project is divided into ten subway sections, one water cistern, two prefab traffic viaducts, one railway viaduct and one aqueduct with the connecting pieces and caps. The subway will consist of U-shaped concrete troughs for the two access roads and a closed section with at least 2.2 m depth of water from the river Geeuw running over it. Close to the deepest point of the aqueduct, a rainwater cistern will be constructed. The concrete cellar will be divided into a wastewater section, from which the water will be pumped to the sewage system, and a rainwater section from which the water will be pumped to the river Geeuw during heavy rain. Both viaducts over the western access to the aqueduct will consist of inverted prefab T sections with a cast-in-situ compression zone. Realisation Geeuwaquaduct Sneek Used software • Allplan Engineering

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