Resistance Piles – Boston, Massachusetts
Problem:
This 3 story brick structure located in the Chinatown District of Boston was undergoing major renovations; construction of two new stories on top of the existing building. The eighty year old foundation was determined inadequate to support the additional loads, and high-capacity underpinning piles were required.
Engineering Design:
Northeast Helical designed an underpinning system consisting of high-capacity resistance piles installed with heavy duty angle iron to spread the loads. The piles were required to hold working loads of 40,000 lbs each. To achieve these loads, the underpinning piles were anticipated to advance to over 70 feet deep.
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Project Details:
Working conditions were made very tough by limited site access and minimal working room. Portable equipment was utilized to install the piles from within the basement. Eighteen underpinning piles were successfully installed in 7 working days.
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