System Capabilities
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Crew working on the NOAA Fairweather to establish the ship's geometry prior to alignment of multi-beam sonar equipment. |
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Following a construction accident at the Port of Portland garage, Westlake performed a precise 3D deformation assessment of remaining steel columns.
Photo courtesy of Dan Carter, DJC. |
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Westlake provided dimensional control for manufacturing of the modules for the power barge Esperanza and real-time alignment support for assembly of the modules.
Photo courtesy of Cascade General Shipyard, Inc. |
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Westlake measured concentric dome claddings and analyzed their shapes to verify the gap between the domes. |
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Westlake provided a series of measurements over several months for retro-fitting the Glomar Explorer. All measurements - whether they were made with the ship in the water or in dry-dock - were tied to a common coordinate system based on the ship's geometry. |
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Periodic measurements during construction of the helix ramps at the Portland Airport garage were made from different locations but tied to a common coordinate system. |
Westlake's Industrial Measurement Services are not conventional surveying.
More accurately described as "applied geometry," we take measurements to model and verify geometric shapes, dimensions, and relationships. We also provide layout and real-time alignment and assembly support.
3D Precision
We typically achieve millimeter precision - in all three dimensions - for any given measurement.
We provide true 3D coordinates to each point measured - for as-builting, analysis, or layout.
Depending on site conditions we achieve this precision at distances up to 200 feet and at angles up to 45 degrees.
Coordinate Analysis
The instrument itself does not need to be set up over or under control stations. It takes precise 3D measurements to project specific control points to verify its location within the coordinate system.
As we move around objects or into the interior of a building or ship, we maintain the same coordinate system. In this way, all measurements can be tied to a common/site coordinate system.
Coordinate conversions can also be made to reference measurements to the project geometry (such as a ship's centerline, a building grid, or the centerline of a rudder stock).
Applications
We provide data to generate precise, 3D as-builts.
Using the as-built measurements, we can analyze shapes in real-time. For example we can define a ship's centerline, assess curvature, or check flatness.
If design data is provided in advance, we can make real-time field comparisons between as-built and as-designed coordinates.
We are able to monitor movement and assess deformation with a high degree of precision.
Our real-time capability has been of particular value for precise assembly/alignment support.
Project Collaboration
The projects we undertake often present unique challenges. Defining project approach and deliverables requires the collaboration of the client/contractor and Westlake staff.
For example, we work together to establish the site geometry, define project tolerances, and identify network control locations.
Typically, we discuss construction process and timing, site conditions, and deliverables.
We take pride in working with our clients to meet measurement challenges.
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