Publication Abstract

Proceedings of the 25th Annual Members' Conference and Eighth International Conference and Exposition, 2000, New York NY, (DFI)

Pin Piles for Structural Underpinning
Seth L. Pearlman PE

Pin Piles are small diameter high capacity drilled and grouted piles also called minipiles or micropiles. They are ideal for building foundations on sites with poor ground conditions, sensistive surroundings, restricted vertical clearance, or difficult access. They are also well suited to foundation underpinning, arresting ground movements, and increasing the capacity of existing foundations. The major factors for selection of Pin Piles are reviewed; drilling, grouting, and design fundamentals are summarized; and a major case history is presented for the underpinning of the 43 story elevator core at the recently opened Mandalay Bay Resort and Casino in Las Vegas, NV

 article #909; publication #54 (AM-2000)