ABSTRACT
The construction of Line 6 in São Paulo’s metropolitan involves 15 underground stations, 15,3 km of tunnels, and a maintenance yard. The project faces challenges due to its scale, location in densely urbanized areas, uneven topography, and complex geology; requiring stations to be built both in confined spaces in surface and great depths. It follows a Build & Design & Operate contract using fast-track method, necessitating the coordination of multiple disciplines in a short timeframe. To manage this complexity, digital models and BIM methodology are used to pre-construct the project, optimize stakeholder communication, and establish a federated model as a central decision-making hub. This approach enhances visualization and integration of disciplines, while managing design and construction modifications. The paper explores how BIM is applied in large, super-complex underground metro stations with tight spaces and interfaces with nearby tunnels, shafts, and utilities in dense urban areas.
