Plenary 6: Design and Operation 1 - Sewer Inspection
3:30pm - 3:50pm
Defect Assessment of Sewer Pipes Based on CCTV Inspections
The University of Auckland, New Zealand
3:50pm - 4:10pm
Application of the sewer drone in inspection of large sewers and special structures
UNITECHNICS KG, Germany
This article introduces the theory and practical application of sewer drone in inspection of large sewers and special engineering structures. Important parameters about sewer drone regarding optimal flying conditions are given and the procedures of post processing of data collected during drone flghts are described. In addition, possibilities as well as limitations in the use of drone for sewer inspection are discussed. With the rapid advance of technology, it can be anticipated in the near future that more possibilites in drone inspection can be exploited as additional support to the conventional sewer inspection methods.
4:10pm - 4:30pm
A stepwise approach to search for illicit connections in the storm sewers of Berlin: using EC and DTS
1Berliner Wasserbetrieb, Germany; 2Kompetenzzentrum Wasser Berlin, Germany; 3Dr. Pecher AG, Germany; 4Partners4UrbanWater, The Netherlands
4:30pm - 4:50pm
Quick 3D scans from the surface for pipeline inspections based on electrical tomography
Deep Scan Tech, Finland
This pilot project demonstrates the use of a novel 3D scanning technology, based on electric tomography and applied from the surface, for identifying and locating underground sewer leaks. As the scans also reveal different soil types and the position of the pipelines, they can reveal the reasons causing pipeline leaks, such as gradual soil movements. Moreover, the aim is to assess the performance, replicability and scalability of the technology for mapping risk areas in large scale. In this pilot a pipeline of 2.5 km was scanned in varying terrain, including across a creek and under a paved road.