SYMPOSIA PAPER Published: 01 January 1984

Lateral-Load Test of an Aged Drilled Shaft


A lateral-load test was conducted on a 0.46-m-diameter concrete drilled shaft constructed July 1966 in stiff expensive-clay soil. This 10.5-m-long test shaft had been subject to considerable uplift thrust from swelling of adjacent soil. The lateral-load behavior was reasonably simulated by solutions of the elastic beam-column differential equation. Solutions assuming a linearly increasing soil modulus with depth evaluated from triaxial strength tests were found in good agreement with the field load test results up to at least ½ of the yield load. Solutions using p-y curves developed from laboratory undrained strengths, and field pressuremeter tests provided good overall agreement with the field load test results.

Author Information

Johnson, LD
U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss.
Briaud, J-L
Texas A&M University, College Station, Tex.
Stroman, WR
U.S. Army Engineer District, Fort Worth, Tex.
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Developed by Committee: D18
Pages: 172–181
DOI: 10.1520/STP36820S
ISBN-EB: 978-0-8031-4901-4
ISBN-13: 978-0-8031-0207-1