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Author(s):	Holste, Karsten; Bassen, Sebastian; Hesse, Christian; Neumann, Ingo
Title:
Abstract:	Die Alterung der Infrastruktur im Bereich der Wasserstraßen führt in Verbindung mit den in Norddeutschland häufig schwierigen Sichtverhältnissen unter Wasser zu massiven Aufwendungen der Betreiber bei der Inspektion, der Bewertung und der Instandsetzung der Verkehrswasserbauwerke. Das vom BMVI mit Forschungsmitteln geförderte und im Dezember 2018 gestartete Projekt 3D HydroMapper soll die Erfassung und Nutzung der 3-D-Scandaten von Bestandsbauwerken über und unter Wasser verbessern. Hierzu sollen neuartige Positionierungs- und Routingverfahren sowie eine aktive Objektausrichtung der Sensorik genutzt werden, um den Zustand von Bauwerken mit sehr hoher Präzision und Auflösung im Bereich weniger Zentimeter auch unter Wasser strukturiert zu erfassen. Erste Testergebnisse zeigen, dass mit dem 3D HydroMapper ein echter Innovationssprung möglich ist. 3D HydroMapper - digital inspection and measuring of waterway structures The ageing infrastructure of waterways requires regular dive inspections at low sight within fluid mud. Therefore, the owners have to spend a lot of time and workforce to inspect, assess and repair the infrastructure. Within the partly funded project by the BMVI we are about to develop a Multi-Sensor-System which simultaneously measures the above and underwater port structures and therefore decreases the inspection time and reduces the service costs. To realize high precision results and high resolutions of a few centimeters an active measurement process with dynamic orientation of the sensors and an autonomous routing is developed. First tests show that the 3D HydroMapper enables highly precise and comprehensive inspections. Damages can therefore be detected over the underwater areas. The measurements can also be used to derive the structures stress level in order to estimate the remaining lifetime.
Source:	Bautechnik 96 (2019), No. 12
Page/s:	951-953
Language of Publication:	German

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