3d scanning in power plant in Porabka Zar

LOCATION
SURVEYING EQUIPMENT
ON-SITE TIME
COMPLETION TIME
FINAL PRODUCT

Porabka, Poland
Laser scanner Riegl VZ-400, Leica TCRA 1101 plus
2 days 2 persons
14 days 1 person
Ortoimages, 2d scations with views in CAD

In Summer 2010 we carried out 3d laser scanning of tunnel (gallery) of pumped-storage water power plant in Porąbka, Poland. This power plant is a second largest pumped-storage water power plant in Poland and was constructed in 1979. The gallery is 470 meters long, the average width is about 5.5 meters and height up to 6 meters. The difference in height between the gate and the plant chamber is 48.92 m. There are numerous stains and infiltrations on the walls and arch of tunnel showing considerable humidity of the object. In the coming months sealing work will be carried out – using the “crystalline injection technology”.

Use of 3d laser scanning in combination with traditional measurements, allowed to generate orthophotoplans of each side walls and arch in the colours of the intensity of the reflected signal. Orthophotoplans interpretations have greatly facilitated the stain and allowed the precise localisation of infiltrations , which will be sealed.
In addition to the orthophotoplans we prepared traditional side walls views, ground plan plan view, and sections trough the whole tunnel at intervals of five meters. Client also received a final point cloud in “pod” format and free version of “Pointools View Pro”- a software which allowed visualization of the point cloud, rotations,measurements between elements. The global accuracy of point cloud is no worse than + / – 5 mm.