keep alaska moving through service and infrastructure 3 - high mast tower... · 2017. 9. 26. ·...
TRANSCRIPT
Keep Alaska Moving through service and infrastructure
Keep Alaska Moving through service and infrastructure
What is a High Mast Tower?
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Overview
Keep Alaska Moving through service and infrastructure
What is a High Mast Tower?
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Overview - Foundations/Bases/Hatch
Keep Alaska Moving through service and infrastructure
What is a High Mast Tower?
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Overview - “Telescoped” Seams
Keep Alaska Moving through service and infrastructure
What is a High Mast Tower?
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Overview - Chandelier
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Tower Locations
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125 Towers Total – Anchorage Area
Keep Alaska Moving through service and infrastructure
Tower Locations
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125 Towers Total – Glenn Highway
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Tower Locations
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125 Towers Total – Wasilla
Keep Alaska Moving through service and infrastructure
Tower Locations
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125 Towers Total – North Pole
Keep Alaska Moving through service and infrastructure
Why Inspect?
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Iowa Collapse - Example
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Why Inspect?
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Iowa Collapse - Example
Keep Alaska Moving through service and infrastructure
Why Inspect?
9/11/2017 12
Iowa Collapse - Example
Keep Alaska Moving through service and infrastructure
Why Inspect?
9/11/2017 13
Iowa Collapse - Example
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Why Inspect?
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Minnesota & Diamond Interchange
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Inspection Plan
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• Visual Inspection of Base• Hand Torqueing Nuts• Visual Inspection of Poles
Keep Alaska Moving through service and infrastructure
Inspection Plan
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Keep Alaska Moving through service and infrastructure
Drone Inspection History
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• 2014 – Test drone images bridge inspection• 2016 – Trial drone contract for mast towers • Six towers tested• Varied wide angle and normal lenses• Varied Video and still images
• 2017 – Contract of 31 towers for drone
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New Inspection Plan
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• Contract Drone Prior to Field Inspection• Preview Drone Photographs in Office• Visual Inspection of Base• Hand Torqueing Nuts• Visual Inspection of Poles• Visual Inspection of Base• Hand Torqueing Nuts• Visual Inspection of Poles*
*At predetermined locations
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Drone Inspection Plan
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• Photograph 1st quadrant with hatch• Proceed up tower w/overlapping photos• Detail specific irregularities• Proceed clockwise to next quadrant• Repeat until all quadrants are completed
Keep Alaska Moving through service and infrastructure
Drone Inspection Example
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Keep Alaska Moving through service and infrastructure
Drone Inspection Example
Keep Alaska Moving through service and infrastructure
Conclusions
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• Better visual than previous inspections• Ability to predetermine in-depth areas• Ability to document inspections• Ability to repeat inspection• Full inventory within 4 years
Keep Alaska Moving through service and infrastructure
Questions?
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