José Vicente Candel, Design Manager in D4R7
Wojciech Wlodzimirski, Design Manager in D4R7
We have designed and built 120 bridges, one of them is the emblematic structure of the Bridge crossing the Danube, which is 3km long. We designed a 210m span, the longest span, and the structure where we have incorporated the most innovative solutions.
Paula García Martínez, Hydraulic Works Coordinator (Technical Office)
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Rigorous work and coordination of the project teams. A result of this is the close collaboration between design, construction, procurement and the rest of the departments has allowed to design the solutions taking into account the construction aspects, cost, deadlines, available suppliers and their know-how. The collaboration with local Slovak teams has also proved a key to success.
It has been essential to employ and go hand in hand with local designers (in this case Dopravoprojekt) when defending the solutions, leading the delivery of the design and the management of the permits but combined with the integration of trusted designers and previous collaborators with Ferrovial in the past (e.g. Torroja, GPO).
Close collaboration with universities and local experts, and where we have often created work teams that incorporate Ferrovial experts, both local and international. In order to analyze and develop the solutions, it has been necessary to convince the local designer, the client and in some cases even the general public – with rigor and technical discussion-. The path followed has been to achieve very close collaboration with universities and local experts, and where we have often created work teams that incorporate Ferrovial experts, both local and international. The support of these experts for the solutions and their technical and regulatory suitability has been decisive in many cases, and of great help in communicating with the local authorities that had to approve the solutions.
On a communication level, D4R7 has taken an active approach, publishing articles regularly in specialized engineering and environmental magazines in Slovakia and the Czech Republic. It has participated in technical discussion forums, conferences (also in neighboring countries, such as in Vienna for the Danube bridges), not shying away from technical discussion but rather promoting it in order to take innovations forward. For example, a good number of innovative solutions in Slovakia have been presented through these mechanisms. We can mention the design and construction of the Danube bridges, the piers of the Danube bridge, the pavement solution I indicated before, structural typologies of new use in Slovakia such as isostatic bridges on floating piers, use of earth walls reinforced with metal strips for floating piers,…etc).
Slovakia is a new geography for Ferrovial. It is a big project, with very complex structures we have had to design and build in a time limit (as always). To be successful in finding an optimal design, we worked along experts from countries like Slovakia, Czech Republic, Spain and Portugal. Additionally, this formula of projects including design and constructionis quite new in Slovakia and uncommon.
“I have become completely aware of the effort (economical, technical and professional) necessary to develop such sophisticated models. In projects as unique as D4R7 that imply substantial changes with impact on the environment, we should consider using new methods so we can control in advance, cost, time needed, or any other necessary resources. Showing the new models- complete and rigorous- have proved pretty useful to convince the local authorities and have helped to obtain construction permits.”