3D Geodesy

A case Study of Ejpovice Tunnel

Radek FialaUniversity of West Bohemia, Faculty of Applied Sciences,

section of Geomatics

V-STARS/S technologydigital close range photogrammetry

high accuracy measurements of deformations or comparison of actual performance of the product against its design.

Wi-FiViewfinder

Internal flashBattery

External flash

Shutter button

Lens f = 21 mm

Francis turbine – ČKD Blansko

Ejpovice tunnel• Part of railway

Athens – Sofia –Wien – Prague –Nuremberg• 2 tubes,

each 4150 m long• Tube diameter 9,89 m• Allows travelling

speed up to 200km/h• Expected end of bulding: 2017

TBM – the „mole“

Segment manufacturing

Segment manufacturing

Segment manufacturing

Measurement preparation

Camera positions

Measured points

Measured points to CAD model differences

Measured points to CAD model differences

Measured points to CAD model differences

Thank you for attentionFollows: Jiří Pék – former student of Geomatics