The value of BIM for infrastructures is no longer in doubt. It is therefore essential to develop a global strategy for design, construction, maintenance and operation that is compatible with current technological developments, given that the transition to the connected site is accelerating throughout Europe on many projects.
During the construction phase, construction sites are being digitalised through a range of connected solutions, from machine guidance to topographic equipment and remote site monitoring platforms. Communication and data exchange between the field and the office are becoming more fluid in order to increase productivity and accuracy. All data from the field is fed into the single, centralised BIM model in real time. This ensures that the design elements are quickly conformed to the execution. This collaborative management between the office and the field connects the levels, operators, surveyors and the project team to ensure time and quality savings.
In this boom of "connected site" and digitalization of construction, one of the keys to the efficiency of the echelons is the monitoring of productivity and optimization of operations on the site. The connectivity of the machines allows the generation of productivity reports for a better management of the fleet of machines, to determine potential levers of improvement of the production in order to increase the output of the machines: to limit the downtimes, to fluidify the production cycles and to have an optimal dimensioning of the fleet.
Workflow from office to site
To explain some of these challenges and in particular the collaborative data flow in the context of an Infrastructure construction project, Benjamin LEHRER, a BIM Manager who has worked for egis and BOUYGUES Travaux Public recently presented a workshop illustrating the interactions between the solutions of different software publishers such as Autodesk, Trimble or Oris. This workshop - accessible on YouTube: Atelier BIM INFRASTRUCTURE - ARKANCE SYSTEMS - allows to visualize a complete BIM workflow, from the pre-study phase to the construction site.
The PORR project in Romania is a concrete and current case study that shows how tomorrow's projects will be able to rely on technologies to enhance the know-how of builders on infrastructure projects. The main issue for PORR was communication and collaboration between the different teams operating on a 1.5km stretch of motorway project. Two levels of solutions were deployed:
Strabag, for its part, has initiated more than 60 projects that combine BIM and connected construction sites. For example, the A5 project has enabled the realignment of design models, the creation of a quantity survey based on a central model, the creation of a geotechnical model that can be reused on site in order to :
Interoperability between the various software solutions still needs to be encouraged, as does the standardisation of requirements at European level. These technologies open up new perspectives and make it possible to achieve high levels of ROI, which should finally convince the most sceptical.
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