Looking at tunnel roughness

The laser scanned vertically-separated strips of wall surface – 1



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