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Uploaded on Jul 12, 2011
Tunnel surveying is a multi-disciplinary task. See http://underhill.ca/land-surveying-se... . This video shows a short train ride to our work site. Turn your sound down, as this ride was deafeningly loud! Underhill Geomatics provided a number of tunnel survey services to the Greater Vancouver Regional District Seymour-Capilano water tunnel.
The Seymour Capilano Twin Tunnels project are 2 x 7.4km tunnels for the treatment of the public water supply, in Vancouver BC Canada. We were traveling 5.6 km to a specific place within the Raw Water Tunnel to perform a 3D laser scan.
Surveying services included:
- 3D Laser Scanning - Engineering Surveying - Plumbing Surveying - Geodetic Surveying - Computation and CAD Mapping
Underhill was hired to established azimuth baselines, check tunnel shaft plumbing , review of past tunnel surveys, provide precise control surveys, create as-built cross sections of the tunnel, and survey sections using 3D laser scanning.