The building next door had a pipe burst that caused Christina Tenaglia’s building to flood, causing an accumulation of 3 feet of water in the basement. The existing concrete piles of 18”x18” had begun to sink one to one and a half inches (1 to 1 ½ inches). The concrete piles were beginning to twist and buckle causing foundation instability on the building. In addition, commercial and residential tenants were residing in the building while this repair had to be mitigated and fixed. Limited access to the basement and confined space presented even more difficulty to this situation.
Year: January 2017
Dealer: Techno Metal Post Hudson Valley
Engineer in charge of the project: Geotechnical and Structural Engineers on site
Location: Beacon, New York, USA
Main contractor: Lambert et Grenier
Project objectives: Restore and support existing structure of two-storey building
Advantages: Helical Piles (Piers) were the only solution for fixing and restoring this building due to the fact of the depth required to reach shale rock without disturbing the ground. Excavating the concrete piers would have caused them to sink further and would have made the building irreparable. Helical piles were the only solution. The proprietary installation equipment due to it size became the only type of helical pier installation equipment that could be used to access the basement.
Type of soil: Sandy Clay to 7 feet down and at 7 feet Shale solid rock
Equipment used: R2D Electric Hydraulic Motor
Bearing Capacity: 20,000 lb and R2D reached refusal.
*******Insertion depth: Approximately 9 feet
Structural details: Two-storey, commercial/residential building with 3 residential tenants and one commercial tenant on the main floor. Building was flooded with 3 feet of water and began to sink 1 to 1 ½ inches. The building was underpinned and helical piles were installed to lift and support the building. The foundation was restored to its original height and became structurally sound.
Techno Pieux simplifie la vie de quiconque ayant des projets de construction qui nécessitent une fondation, et ce, dans presque tous les types de sols existants.