A New Online Representation Tool for Collaboration and Dissemination of Combined Surface and Subsurface Activities: Share-Twin

The subsurface can be at once the support for surface infrastructure, the host for buried infrastructures, and a source of resources. The ongoing transition to exploring the subsurface digitally has so far provided focused, specialist tools (BIM, geological models, GIS) that offer advanced possibilities to better understand our environment, both natural and man-made. As we open these tools up to non-specialists, with the aim of breaking down silos between disciplines, integrative tools are emerging. Share-Twin is aimed at easing communication, both between specialists and between specialists and non-specialists. For near-surface needs, which more than other any other area of subsurface study requires the coupling of infrastructure and the subsurface, Share-twin aims at providing an all-in-one representative environment into which multisource information can be imported, for example geological models from geophysical investigation, infrastructure (CAO and BIM), and territorial planning (GIS). The result is an online multi-user interface that makes it possible to build and share a 3D digital twin of the combined natural environment and man-made infrastructure for the purpose of planning and communication. The project we are presenting here examines the online architecture and its potential use for near-surface activities such as geophysical investigations, underground utility networks, and city-surface models.