UNH – Hamel Recreation Center

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.

 

240 kip Static Load Test

240 kip Static Load Test

Recording readings from dial gauges during test

Recording readings from dial gauges during test

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Driving sheet piles, flat boom to get under the awning

Driving sheet piles, flat boom to get under the awning

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Panorama of the jobsite

Panorama of the jobsite