ABSTRACT

Digitalization of large tunnelling projects during design and construction has progressed significantly in the past 10 years. The knowledge and know-how of tunnelling engineers have evolved to the point where digitalization involves not just digital drawings, but also building information modelling (BIM), complex common data environments (CDE) and digital reporting through online databases, combining them in a complex system which supports all project processes. In this article we provide an insight into the latest of such projects in Slovenia, the second railway track Divača-Koper, which was fully digitalized. Additionally, we present the goals of digitalization set up by the client, CDE implementation, and examples of digital processes during design and construction. These include usage of 360 photos, point clouds and 3D visualisations of design solutions, dynamic connections of BIM to bill of quantities and the process of digital daily reporting being used for As-Built BIM model generation.