2. The City of Barrie planned to expand Centennial
Park by realigning Lakeshore Drive onto the former
CN railway right of way. This initiative will increase
the green space, pathways and parking along the
City of Barrie’s waterfront.
LAKESHORE DRIVE RECONSTRUCTION AND UTILITY SUPPORT ON HELICAL PILES
BARRIE, ONTARIO
THE PROBLEM
Deposits of organic material (peat) and 20 to 45 metres of soft clay
required the design of culverts, stormceptors, sanitary and storm sewers
to be supported on reinforced concrete grade beams and helical piles.
THE SOLUTION
Under the recommendation of the City of Barrie and their engineering
team, EBS Geostructural was contacted to design and install test piles after
repeated test pile failures by the original “low bid” helical pile contractor
(non Chance Helical Pile material).
EBS installed four test Chance Helical Piles next to the original helical pile
contractor’s test piles. All four of the EBS designed Chance Helical Piles
met the movement criteria at test load. EBS was awarded the contract to
install 670 helical piles using their design.
The failures of the “low bid” helical pile contractor delayed the project
by approximately eight weeks. This delay cost the city and the structural
engineer more time than anticipated due to the extra review required.
PHOTO
EBS Geostructural installing Chance Helical Piles
EBSGEOSTRUCTURAL
ANDCHANCEHELICALPILES:
OFTENIMITATED,
NEVERDUPLICATED
ANEBSCASESTUDY
EBSGeostructuralInc.
320WoolwichStreetSouth
Breslau,ONN0B1M0
PHONE: 519.648.3613
FAX: 519.648.2526
WEB: www.ebsgeo.com
EMAIL: info@ebsgeo.com
JohnSmith
BigShotEngineer
Engineeringcomtech
123AnyplaceStreet,Suite123
Anytown,AB
A1BC2D
3. Chance Helical Piles Competitor’s Helical Piles
Helical Pile Manufacturer’s
Approval + QA/QC
• Fabricated in an ISO 9001
Certified Facility
• Canadian Construction Materials
Centre Approved (CCMC 13193-R)
• Minister’s Ruling – Ontario
• Mill Prime Material
(Not secondary material)
• Facility Certified by Canadian
Welding Bureau (CWB)
Installed Helical Pile Description
• Grouted Chance 44mm (1.75 inch)
Solid Square Bar
• 200mm, 250mm and 300mm
Diameter Helical Plates
• 90mm O.D. (6mm wall thickness)
Round Shaft Helical Pile
• 250mm, 300mm and 350mm
Diameter Helical Plates
Final Installation Depth from Grade 38m (125 feet) 36.6m (120 feet)
Final Installation Torque 15,000kN m (11,000 ft-lbs) 15,000kN m (11,000 ft-lbs)
Movement at 520 kN (2xSLS Load) 18mm 74mm
Maximum Allowable Movement at
520 kN (Prescribed in Tender Documents)
25mm
Meet Movement + Load Criteria PASSED (4 tests) FAILED (4 tests)
LOAD TEST COMPARISON FOR CHANCE HELICAL
PILES AND COMPETITOR’S HELICAL PILES
Square Shaft Chance Helical Piles
