Laser-based tunnel inspection
Many tunnel inspections still consist in visual walk-through inspections, mainly based on the personal experience and individual assessment of the inspectors. The inspections are often limited to problematic areas and focused on certain phenomena which need special attention. During these walk through inspections, notes and pictures are recorded and later assembled into a database, often involving a lot of manual steps and tedious back office work.
Over the past 15 years, laser scanners developed into a powerful technology for acquiring data describing the geometry and surface of tunnels. Mobile scanning systems became popular to perform data acquisition for tunnel inspection with an operational speed compromising between short maintenance windows and required data resolution. In our talk, different mobile laser scanning systems developed and deployed by Amberg Technologies for various use cases in tunnel inspection will be presented. Furthermore, we will provide an outlook on ongoing developments, addressing tunnel inspection with a holistic approach and leveraging the back office tasks using highly automated and fully digital tools and workflows.