Text Box: Helical-Pier Foundation Systens Underpinning Comfort Inn, Bridgewater, N.S.
Text Box: A Helical Pier Underpinning System was used to support the foundation of the Comfort Inn, in Bridgewater, Nova Scotia. The rear portion of the building had been constructed over poorly compacted fill approximately 12'-0" thick and had settled over 4" with no signs of stopping. This resulted in cracked and unlevel floor slabs; cracked brick; broken windows and jammed doors, thus rendering the building unfit for purpose. The Helical Piers were specifically engineered to support the structure based on the geotechnical information available and had an ultimate capacity of over 50,000 pounds each. The footing was exposed by excavating, and the piers were installed with hydraulically powered drilling equipment. The key to success is the installation torque which has a proven relationship of 10:1 with the ultimate capacity of the pier and extensions are added until the desired capacity is achieved. A foundation bracket connects the piers to the footing, and all the piers are stressed until the structure is completely supported on the piers. At that point, the structure can be jacked back into position if desired. The Helical Pier Underpinning System proved to be the only viable alternative to saving the structure and were installed quickly, economically, and with minimal disruption to business.
 
 
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