Case Study #02487
Project Description
Multi story commercial building and parking garage in the downtown Denver area. This development site required a quick, high capacity solution. The PierTech® Hercules Pile was brought in to satisfy the project demands.
Design Description
The PierTech® Hercules piles consisted of: Compression: 500 5 1/2”O.D.(0.361wt) X 40’ long with 19” X 3/4” thk helix. Pile capacity of 170 tons- compression. Also; 500 4 1/2”O.D.(0.337wt) X40’ long with 16” X 3/4” thk helix. Pile capacity of 90 tons- compression. Tension: 100 – 5 1/2” O.D.(0.361wt) X 40’ long with 4 19” X 3/4” thk helix. Pile Capacity of 190 tons- tension. Also; 100 5 1/2 O.D.(0.361wt) X 40’ long with 3 16” X 3/4” thk helix. Pile capacity of 90 tons- tension.
Construction
The PierTech® Hercules piles were installed in multi-cluster configurations, both compression and tension. These high capacity helical piles were installed to an average depth of 40 feet and terminated on a bedrock strata. 1200 piles were installed using 80K and 60K PierTech® drive heads. Once the pile installation was complete, the clusters were tied into pile caps and the foundation was poured. .