Photogrammetry Application in Brenner Base Tunnel wins Allied Vision’s Case Study Competition
Allied Vision’s worldwide Case Study Competition concluded in December with the selection of one winner chosen from all submitted applications. Montanuniversität in Leoben, Austria won for its project, developed by the Institute for Subsurface Engineering in collaboration with Geodata GmbH, also of Leoben, dealing with the development of a camera system for boring machines used in tunnel construction projects. This project has been realized in cooperation with Allied Vision’s distribution partner and imaging technology provider Stemmer Imaging in Puchheim, Germany. The system is currently in use in the construction of the Brenner Base Tunnel. Representing the entire team, Dipl.-Ing. Robert Wenighofer, accepted Allied Vision’s award and congratulations.
Numerous international customers from different industries answered the call from Allied Vision, taking the opportunity to submit their own applications for consideration. Prerequisite for participation was that Allied Vision cameras be an important component of the described solution. Along with topicality and uniqueness, applications were evaluated according to how critical Allied Vision’s cameras were to the project’s success and/or achievement of project goals.
Prosilica GT2000 an important part of the solution
After all criteria were evaluated, the Institute for Subsurface Engineering of Montan University in Leoben stood out. Their team, headed by Dipl.-Ing. Robert Wenighofer, developed a camera system using Allied Vision’s Prosilica GT2000 GigE Vision camera with a 2.2 megapixel CMOS sensor. The camera is robust and well suited for use in extreme environmental conditions.
Using the camera in the head of the tunnel drilling machine, images of the working surface are generated from clearly defined angles. Based upon these recordings, a 3D image is reconstructed, using photogrammetric procedures, that is then used to analyze the rock’s composition. Mineral composition, spatial position of stratifications, and depth of eruptions can thus be determined. This valuable information enables an assessment of the structural analysis and a verification of the geological model, ensuring continuous tunnel boring free from disruption.