Tailrace Tunnel with Variable Crown Height
Tailrace Tunnel with Inclined Ceiling
tailrace tunnel with the ceiling height change
changing top altitude tailrace tunnel
inclined roof tailrace tunnel
power tunnel and tailrace tunnel system
tailrace tunnel ventilation
Angle of intersection of the exhausting duct orifice with tunnel axis
arcade tunnel with partial pressure
Diversion Tunnel with Small Section
double-track railway tunnel with shallow cover
flood discharge tunnel with horizontal vertex flow
flood discharge tunnel with inner energy
flood discharge tunnel with vertical vertex flow
Highway Tunnel with Large Cross Section
Highway Tunnel with Large Span