- ATCO Electric Ltd: 700S Bonnyville Substation Expansion
- ATCO Electric Ltd: 700S Bonnyville Substation Expansion
- Overview
In December of 2012 under Stewart Weir (ZALIG Team) completed a geotechnical site investigation & report for a proposed expansion of 700S Bonnyville Substation on the behalf of ATCO Electric Ltd. The substation was live energized station and required the supervision of a qualified ATCO Electric Ltd. fieldwork representative in order to monitor safe limits of approach.
- Project Goal
The purpose of the site investigation was to address the following scope of work:
- Ground surface elevation at each borehole location
- Obtaining soil samples (as per ASTM D1587) at 0.75 m interval
- Pocket penetrometers readings on soil samples
- Standard Penetration Tests (SPT) at 1.5 m intervals
- Groundwater and sloughing level at completion of field drilling
- Installation of standpipe piezometer to monitor the stabilized groundwater level
- Laboratory testing to permit the development of geotechnical design parameters
- Development of design parameters of earthwork
- Recommendations for cement type in concrete
- Results
- All the project goals were met.
- On-site drilling of five boreholes to depths up to 15m or refusal were performed.
Laboratory materials testing included:
- Moisture Content ASTM D2216
- Consolidation Test ASTM D2435-90
- Sulphate Analysis ASTM C1580
- Atterberg Limits ASTM D4318
- Project Details:
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Client: |
ATCO Electric Ltd |
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Date: |
October 15, 2012 |
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Duration: |
3 Months |
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Location: |
Bonnyville, Alberta Canada |
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Category: |
Geotechnical Engineering |
|
Status: |
Completed |
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