Behavior of Large Bored Piles in Fuzhou
Publication: Journal of Geotechnical Engineering
Volume 119, Issue 3
Abstract
Large bored piles are popularly used in south‐east coast of China. Pile foundation design is based largely on empirical method. However, the behavior of these piles is not well understood. Generally, end bearing capacity of these piles is regarded as a dominant factor in design. This paper describes a group of static loading tests on instrumented large bored piles in Fuzhou city. All test piles were installed by slurry displacement method. Strain gages and telltales were mounted in the shafts of the piles. Load transfer behavior of the piles was studied under static axial compressive load condition. The results of the tests show that all of the piles carry a significant portion of the applied load through skin resistance although the surrounding soils are very weak. This fact contradicts the traditional understanding of large bored piles by local engineers. The ultimate skin resistances of predominant soils in Fuzhou are presented in the paper.
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References
1.
Coyle, H. M., and Reese, L. C. (1966). “Load transfer for axially loaded piles in clay.” J. Soil Mech. and Found. Engrg. Div., ASCE, 92(2), 1–26.
2.
Reese, L. C., Tomma, F. T., and O'Neill, M. W. (1976). “Behavior of drilled piers under axial loading.” J. Geotech. Engrg. Div., ASCE, 102(5), 493–510.
3.
“Specification for building foundation design; GBJ 7‐89.” (1989). State standards of the People's Republic of China, Building Industry House of China, Beijing, R.O.C. (in Chinese).
4.
Yaonian, Zhang, Gong, Y., and Liu, C. (1990). “Load transfer behavior of large bored piles in Fuzhou.” Chinese J. of Geotech. Engrg., 12(5), 84–90 (in Chinese).
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Copyright © 1993 American Society of Civil Engineers.
History
Received: Sep 8, 1992
Published online: Mar 1, 1993
Published in print: Mar 1993
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