Looking at tunnel roughness
-
The laser scanned vertically-separated strips of wall surface - 1 -
Equivalent sand grain roughness calculated against rock type -
Specific headloss ranges in different diameters of the headrace -
Visual inspection -
Figure 1 -
The laser scanned vertically-separated strips of wall surface - 2 -
Caclucalted equivalent sand grain roughness from survey data -
Figure 5 -
Figure 6 -
Figure 3 -
Survey findings -
Figure 2 -
Figure 4 -
Following the visual inspection - 2 -
Proportions of roughness class measurements -
Following the visual inspection - 1 -
Karahnjukar location map