The added value of augmented reality
Ballast Nedam uses augmented reality for quality inspections of structures that often still have to be poured, also known as 'pre pour inspections'. We superimpose two situations on each other in images: the actual situation and the design. This allows us to easily check whether the 3D design is also complete and in the correct position in reality. Anyone can make this comparison, so that any discrepancies are detected more quickly and we can act in good time.
Previously, this method of working was very different. These quality controls were carried out by a measuring officer who took measurements, compared these with the design in the computer and reported any deviations. Because this inspection always took place just before the concrete was poured, possible deviations were discovered (too) late. By applying augmented reality, this quality control is more accessible, our teams can see any discrepancies immediately and they can be repaired more quickly.
Implementation on the A24 Blankenburg connection
An example of an augmented reality project is the application on theA24 Blankenburg connection in Rotterdam. Using augmented reality, our measuring specialists check whether all the requirements in the construction docks have actually been installed. The concrete structures are then poured. The augmented reality serves as an extra check, in addition to the regular working method.
Clemens Tierie, coordinator of measurements and monitoring: "These checks must be carried out in a short time, in a convenient and accurate manner. That's why we started this new way of working on the A24 Blankenburg connection. We use augmented reality with a surveying GPS solution and high accuracy. This allows us to carry out checks with great precision."
The surveyors upload all data into a cloud. Every time the augmented reality application is started, the data is retrieved from the cloud again. This ensures that the correct, up-to-date drawings are always used, even when multiple systems are used on one construction site. Also, the inspector always uses the same files as the dimensioner.
In addition to this deployment on the A24 Blankenburg connection, this innovation is being tested at the Prinses Amaliahaven in Rotterdam, where we are constructing 2.4 kilometres of quays. Because the augmented reality system works on GPS, it cannot be used in covered situations, such as a building. We are therefore mainly using it in the outdoor environment: in infrastructure and civil concrete construction. Ballast Nedam expects augmented reality to become increasingly commonplace. This development in the industry is being closely monitored by our measurement specialists.