Location: University of New Hampshire, Durham, NH
Client: Shawmut Design & Construction
Scope of Work
- Install approximately 10,850 linear feet of HP 10×42 steel piling to support a new addition to the existing Hamel Recreation Center.
- One static load test was completed in accordance with ASTM-D-1143-07 specifications to verify the results of five dynamic test’s that were performed on a previous day.
- Installation of a 86′ long excavation support wall consisting of steel sheet piles and helical anchors to accommodate an excavation depth of approximately 10 feet. This excavation took place approximately 3 feet away from the existing building.
The project consisted of driving 313 steel piles to support a new addition to the existing Hamel Recreation Center that was concurrently being renovated. Pile lengths ranged from 63′ to 6′. We used 2 cranes to complete the project. One crane was an 80 ton Link Belt LS-138 equipped with flying leads. The second crane was a 45 ton Link Belt 108 equipped with fixed leads. The original schedule set forth by Shawmut Design & Construction had deep foundations to take 35 days. Although the site was small, we were able to work continuously and efficiently with two cranes and the pile driving finished 2 weeks ahead of schedule. The project was a success and pile caps and grade beams began ahead of schedule.