SYMPOSIA PAPER Published: 01 January 1957

Field Tests on Laterally Loaded Piles in Sand and Clay


The paper describes the instrumentation used to obtain “fixed head” loading condition for static and repetitive testing. The effect that the degree of fixity has on the pressure and deflection patterns is discussed. A comparison is made between the measured values, and theoretical deflection and pressure patterns as developed from the Palmer-Thompson theory. A method is presented by which the engineering profession may have lateral thrust pile problems solved by IBM calculation at nominal costs. Details are also presented of the instrumentation used in a pile embedded in 40 ft of clay soil, including a new electronic pressure cell. Results of the “at rest” pressure studies are presented.

Author Information

Mason, Harold
U. S. Naval Civil Engineering Research and Evaluation Laboratory, Port Hueneme, Calif.
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Developed by Committee: D18
Pages: 133–151
DOI: 10.1520/STP45849S
ISBN-EB: 978-0-8031-6745-2
ISBN-13: 978-0-8031-6551-9