SYMPOSIA PAPER Published: 01 January 1969



In recognition of the importance of deep foundations in foundation engineering, it was considered appropriate to organize a symposium to bring to the practicing engineer the most recent advances in the state of the art in the design and evaluation of deep foundations. Emphasis was placed on the following four needs in deep foundation design and performance: (1) a more rational analysis of the behavior of piles under both static and dynamic loads, (2) the correlation of pile-load-test data with soil data obtained during subsurface investigation, (3) controlled, well-documented pile group tests, and (4) the measurement in the real structure of load deformation of pile groups and a comparison of predicted and observed behavior. The symposium was divided into three main sections entitled: “Load Transfer, Lateral Loads, and Group Action of Deep Foundations,” “Dynamic and Earthquake Forces on Deep Foundations,” and “Testing, Specifications, and Construction Control.” Papers in these various categories were solicited from a number of the leading engineers in the country, both in practice and in the academic field. Rather than toward the traditional basic concerns with driving formulas and load tests on single piles, the symposium presentations and discussions were directed primarily toward the more sophisticated aspects of deep-foundation engineering. It is the hope of the authors and sponsors of this symposium that these papers will advance the state of knowledge so that practicing engineers can make use of recent progress in theory and practice to design and construct deep foundations with optimum safety and economy.

Author Information

Lundgren, Raymond
Woodward-Clyde & Associates, Oakland, Calif.
D'Appolonia, Elio
, Pittsburgh, Pa.
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Developed by Committee: D18
Pages: 1–1
DOI: 10.1520/STP47277S
ISBN-EB: 978-0-8031-6901-2
ISBN-13: 978-0-8031-6644-8