Publication Abstract

Proceedings - Fifth International Conference & Exhibition on Piling and Deep Foundations, 1994, Bruges, Belgium, (DFI)

Researches into the behaviour of high capacity pin piles
Dr. D.A. Bruce & P.J. Nicholson

Minipiles are known by many names, but are generically small diameter, cast-in-place bored piles. Although they have been used in Europe for over 40 years, the United States, where they are commonly referred to as Pin Piles, they have become a popular choice for underpinning only during the last 10 years. The paper describes fundamental laboratory and field researches recently conducted to better understand load transfer mechanisms. This work has led to the development of the Elastic Ratio concept which is now proving extremely useful in analyzing and preducting pile performance, and in particular the phenomenon of progressive debonding with increasing load.

 article #786; publication #36 (IC-1994)