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For the 'BAAK' consortium, Nobleo Bouw & Infra has been providing the complete GWW and phasing design for the new Blankenburg connection since the tender phase. At the suggestion of the engineering firm, the zinc tunnel (Maas Delta Tunnel) is even being realized using 4D Work Preparation, a unique service provided by Nobleo. According to Teun Smeijers, department manager of Nobleo Bouw & Infra, linking 3D data to the execution planning and being able to test working methods offers plenty of advantages.
The Blankenburg connection is a complex infrastructure project that began in 2018 and is scheduled for completion in 2024. In the meantime, a new freeway of 2×3 lanes will be constructed that will pass through a land and sink tunnel. In addition, two new interchanges will be constructed that will connect the A20 to the A20 at a depth and the A15 at an elevated level. "On behalf of BAAK, we are providing, among other things, the GWW design of the final situation and we are tackling all the main phases as well as site design, logistics and construction phasing," Smeijers lists. "Due to the complexity of the project with its many interfaces, we were able to convince the consortium to use our '4D work preparation' expertise."
3D BIM is a good start, but is mainly used to parse design interfaces, Smeijers continues. "4D BIM adds time planning, but then you're not really there yet. With 4D work preparation, we go one step further by testing construction methods and can even eliminate realization interfaces in advance. It is precisely this step where things often still go wrong, despite good preparations. With 4D Work Preparation, this is prevented. By the way, it is a continuous process and is constantly monitored and adjusted." The 4D Work Preparation team at Nobleo Bouw & Infra consists of a combination of designers and work planners who can combine inside and outside knowledge. Smeijers: "We advocate always involving the work preparation and execution knowledge in the design at an early stage."
4D Work Preparation is a relatively new feature for the infrastructure sector but, according to Smeijers, is definitely bearing fruit
af. "With the increase in complexity in infrastructure projects, a fully digital connection between design and execution is becoming insurmountable. It is also a very suitable communication tool, both internally and externally to stakeholders."
