Effect of Construction on Axial Capacity of Drilled Foundations in Piedmont Soils
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 128, Issue 12
Abstract
A program of field loading tests was conducted to measure the axial response of drilled foundations constructed using a variety of different drilling techniques. The research was performed at the Auburn University National Geotechnical Experimentation Site at Spring Villa, Ala. in Piedmont geology composed of silty soils formed by weathering of parent metamorphic rocks. A total of ten drilled shafts (0.9 m diameter by 11 m deep) were constructed using techniques including dry construction with casing advanced ahead of the hole and with drilling slurry composed of polymer fluids and mineral (bentonite) fluids. The results demonstrate the great potential influence that differing construction techniques may have on the load transfer in side shear of drilled foundations. The mineral slurry resulted in significantly lower side shear relative to the other techniques.
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References
Brown, D. A., and Vinson, J. (1998). “Comparison of strength and stiffness parameters for a Piedmont residual soil.” Geotechnical site characterization, ISC’98, P. K. Robertson and P. W. Mayne, eds., Vol. 2, Balkema, Rotterdam, The Netherlands, 1229–1234.
Brown, D. A., and Drew, C. (2000). “Axial capacity of augered displacement.” New technological and design developments in deep foundations, GSP 100, N. D. Dennis, R. Castelli, and M. W. O’Neill, eds., ASCE, New York, 397–403.
Burke, C. E. (2001). “Drilled shafts in the Virginia Piedmont.” Foundations and ground improvement, Geotechnical Special Publication No. 113, T. L. Brandon, ed., ASCE, Reston, Va., 175–189.
Camp, W. M., Brown, D. A., and Mayne, P. W. (2002). “Construction methods effects on drilled shaft axial performance.” Deep foundations 2002, Geotechnical Special Publication No. 116, M. W. O’Neill and F. C. Townsend, eds., ASCE, Reston, Va., 193–208.
Cooke, R. W. (1979). “Load transfer from bored, cast-in-situ piles in London clay.” Behavior of deep foundations, STP 670, ASTM, Philadelphia, 250–263.
Gardner, W. S. (1987). “Design of drilled piers in the Atlantic Piedmont.” Foundations and excavation in decomposed rock of the Piedmont Province, GSP 9, R. E. Smith, ed., ASCE, New York, 62–86.
Harris, D. E., and Mayne, P. W. (1994). “Axial compression behavior of two drilled shafts in Piedmont residual soils.” Proc., Int. Conf. on Design and Construction of Deep Foundations, Vol. 2, Federal Highway Administration, Washington, D.C., 352–367.
Holden, J. C. (1984). “Construction of bored piles in weathered rock, Part 4: Bentonite construction procedures.” Tech. Rep. No. 6, Road Construction Authority of Victoria, Australia.
Majano, R. E., O’Neill, M. W., and Hassan, K. M.(1994). “Perimeter load transfer in model drilled shafts formed under slurry.” J. Geotech. Eng., 120(12), 2136–2154.
Mayne, P. W., Brown, D. A., Vinson, J., Schneider, J. A., and Finke, K. A. (2000). “Site characterization of Piedmont residual soils at the National Experimentation site, Opelika, Alabama.” National geotechnical experimentation sites, Geotechnical Special Publication No. 93, ASCE, Reston, Va., 160–185.
Mayne, P. W., Martin, G. K., and Schneider, J. A. (1999). “Flat dilatometer modulus applied to drilled shaft foundations in Piedmont residuum.” Behavioral characteristics of residual soils, Geotechnical Special Publication No. 92, ASCE, Reston, Va., 101–112.
Mayne, P. W., and Schneider, J. A. (2001). “Evaluating axial drilled shaft response by seismic cone.” Foundations and ground improvement, Geotechnical Special Publication No. 113, ASCE, Reston, Va., 655–669.
Meyers, B. (1996). “A comparison of two shafts: Between polymer and bentonite slurry construction and between conventional and osterberg cell load testing.” Proc., Southwest Regional FHWA Geotechnical Conf., Little Rock, Ark., April.
O’Neill, M. W.(2001). “Side resistance in piles and drilled shafts.” Proc. 34th Terzaghi Lecture, J. Geotech. Geoenviron. Eng., 127(1), 1–16.
O’Neill, M. W., and Hassan, K. H. (1994). “Drilled shafts: Effects of construction on performance and design criteria.” Proc., Int. Conf. on Design and Construction of Deep Foundations, U.S. Federal Highway Administration, Washington, D.C., Vol. 1, 137–187.
O’Neill, M. W., and Reese, L. C. (1999). “Drilled shafts: Construction procedures and design methods.” Publication No. FHWA-IF-99-025, U.S. Dept. of Transportation, Federal Highway Administration, Washington, D.C., 535.
Sowers, G. F., and Richardson, T. L. (1985). “Residual soils of the Piedmont and Blue Ridge.” Transportation Research Record No. 919, National Academy Press, Washington, D.C., 10–16.
Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 128 • Issue 12 • December 2002
Pages: 967 - 973
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Jun 8, 2001
Accepted: Apr 25, 2002
Published online: Nov 15, 2002
Published in print: Dec 2002
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