Load Transfer Mechanisms in Piles and Pile Groups

by Michael W. O'Neill, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Univ. of Houston, Houston, Tex.,
Richard A. Hawkins, (A.M.ASCE), Project Mgr.; Raymond Technical Facilities, Inc., Houston, Tex.,
Larry J. Mahar, (A.M.ASCE), Project Engrg.; ERTEC, Inc., Long Beach, Calif.,

Serial Information: Journal of the Geotechnical Engineering Division, 1982, Vol. 108, Issue 12, Pg. 1605-1623

Document Type: Journal Paper


This paper describes patterns of measured load transfer in a full-sized instrumented pile group; subgroups within the main group; and in single control piles loaded in compression. The effects of residual stresses and uplift loading on load transfer are also described. Unit load transfer relationships are presented that are related to observed properties of the soil, which was a saturated overconsolidated clay. Similarities and differences between load transfer in single piles and load transfer in a pile group are also emphasized.

Subject Headings: Pile groups | Saturated soils | Load transfer | Piles | Soil analysis | Compression | Residual stress | Uplifting behavior

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