Drilled Shafts & Continuous Flight Auger (CFA) Piles
Malcolm’s expertise for various deep foundation methods helped the designer to optimize the use of Continuous Flight Auger Piles (CFA piles) in lieu of the traditional Cased Drilled Shafts. On this project Malcolm installed over (140) 48-inch diameter Continuous Flight Auger Piles (CFA piles) up to 80-feet deep and (200) 36-inch diameter CFA piles up to 70-feet deep bringing considerable schedule and cost savings to the Project. Where the future structure was below grade and CFA piles were not a viable option, Malcolm installed over (210) 48-inch diameter drilled shafts up to 100-feet deep, utilizing temporary steel casings to stabilize the weak bay mud soils during drilling. From our highly specialized fleet of equipment, we utilized several of our Bauer drilling rigs, Leffer oscillators, Putzmeister boom pumps, and Liebherr cranes to complete this work.