Science World, Vancouver

    Science World during seismic upgrading and renovation, 2011

    Science World during seismic upgrading and renovation, 2011

    Survey layout, of location of beams and panels, extracted from 3D Laser scans at Science World, 2011

    Survey layout, of location of beams and panels, extracted from 3D Laser scans at Science World, 2011

    Survey layout, of location of beams and panels, extracted from 3D Laser scans at Science World, 2011

    Survey layout, of location of beams and panels, extracted from 3D Laser scans at Science World, 2011

    Clour Capture, from Faro Photon 3D laser scanner, of structure under Science World, 2011

    Clour Capture, from Faro Photon 3D laser scanner, of structure under Science World, 2011

    AutoCAD drawing of underside beam and panel locations extracted form Laser Scan relative to surface grid.  Science World, 2011

    AutoCAD drawing of underside beam and panel locations extracted form Laser Scan relative to surface grid. Science World, 2011

    Realworks screen capture of point cloud of underside of Science World, 2011

    Realworks screen capture of point cloud of underside of Science World, 2011

    Science World during seismic upgrading and renovation, 2011

    Science World during seismic upgrading and renovation, 2011

    Faro Scene view of 3D Laser Scan under Science World, scanning was done at night, in the dark, when the tide was low enough for access, 2011

    Faro Scene view of 3D Laser Scan under Science World, scanning was done at night, in the dark, when the tide was low enough for access, 2011

    Faro Scene view of point cloud data under Science World, notice the detail captured in the structure and utilities, 2011

    Faro Scene view of point cloud data under Science World, notice the detail captured in the structure and utilities, 2011

    Access cutout of panel in the deck of  Science World, 2011

    Access cutout of panel in the deck of Science World, 2011

Science World was originally constructed for Vancouver's World Expo '86. Currently, the structure is undergoing major renovations. As a part of this renovation, the facility is being seismically upgraded. The building is built on steel piles over False Creek. The upgrade involves drilling injection grout columns into the seabed. Over 200 holes must be cored into the existing deck without damaging any structure or the utilities under the deck.

This project included numerous surveying services including

  • as-built surveys,
  • three dimensional laser scanning, and
  • control surveys.

Go to our Faro 3D Laser Scanning Project Site

Go to Science World

Underhill performed a detailed as-built survey of the underside of the Science World facility. All surveyed features were then transferred topside and used to determine the precise location of the coring holes. The challenge was to locate a myriad of complex features in a short time frame. The construction schedule was brief, and the area was completely flooded throughout most of the day due to the tides. The space could only be accessed in four hour blocks before and after low tide. At the time of the survey, the low tides were occurring at approximately 11PM.

Three dimensional laser scanning was determined to be the most cost-effective, efficient and comprehensive method to survey the underside of the facility. A precise survey control network was established, followed by nineteen laser scans, each containing 40 million data points, with the final "point cloud" containing over 720 million points. It was estimated, at the time, that seven to ten nights of conventional total station surveying would have been required to capture the features. Underhill completed the laser scanning in just two nights.

The control survey was adjusted using least-squares and the scan data registered to it. As-built features of concern were extracted from the "point cloud" and precisely surveyed on the top of the deck to insure that coring would not interfere with what was below.

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