Strip Footing Behavior on Pile and Sheet Pile-Stabilized Sand Slope
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 131, Issue 6
Abstract
This paper presents the results of laboratory model tests on the behavior of a strip footing supported on a row of piles and sheet pile-stabilized sandy slope. A comparison between the bearing capacity improvements in the two cases was made to study the most efficient one. The parameters varied in the study include pile diameter, pile length, pile spacing and location of pile row, height of sheet pile, location of sheet pile, and location of the footing relative to the slope crest. Initially, the bearing capacity of the nonstabilized cases were determined and then compared with those of stabilized slopes. The results were then analyzed to study the effect of each parameter. The results indicate that stabilizing the earth slope using a row of piles or sheet pile has a significant effect in improving the bearing capacity of the strip footing. This improvement in bearing capacity increases when pile spacing decreases and pile length increases with a further improvement upon increasing the pile diameter. However, the overall improvement when using the sheet pile to stabilize the earth slope is much better than that when using a row of piles.
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Acknowledgments
The tests were performed in Soil Mechanics Laboratory of Structural Engineering Department, University of Tanta, which is appreciated. The writer would like to acknowledge the valuable comments of Professor Dr. M. A. Mahmoud, and the support provided by Professor Dr. M. M. Bahloul.
References
Ausilio, E., Conte, E., and Dente, G., (2001). “Stability analysis of slopes reinforced with piles.” Comput. Geotech., 28, 591–611.
Cai, F., and Ugai, K. (2000). “Numerical analysis of the stability of a slope reinforced with piles.” Soils Found., 40 (1), 73–84.
Chen L. T., and Poulos H. G. (1997). “Piles subjected to lateral soil movements.” J. Geotech. Geoenviron. Eng., 123(9), 802–811.
De Beer, E., and Wallays, M. (1970). “Stabilization of a slope in schist by means of bored piles reinforced with steel beams.” Proc., 2nd Int. Congress on Rock Mechanics, Beograd.
Graham, J. Andrews, M., and Shields, D. H. (1988). “Stress characteristics for shallow footing in cohesionless slopes.” Can. Geotech. J., 25(2), 238–249.
Hassiotis, S., Chameau, J., and Gunaratne, M. (1997). “Design method for stabilization of slopes with piles” J. Geotech. Geoenviron. Eng., 123 (4), 314–323.
Hong, W. P., and Han, J. G. (1996). “The behavior of stabilizing piles installed in slopes” Proc., 7th Int. Symposium on Landslides, Rotterdam, The Netherlands, 1709–1714.
Huang, C., Tatsuoka, F., and Sato, Y. (1994). “Failure mechanisms of reinforced sand slopes loaded with a footing.” Soils Found., 24(2), 27–40.
Hull, T., and Poulos, H. (1999). “Discussion of ‘design method for stabilization of slopes with piles.”’ J. Geotech. Geoenviron. Eng., 125(10), 911–913.
Ito, T., and Matsui, T. (1975). “Methods to estimate lateral force acting on stabilizing piles.” Soils Found., 15(4), 43–59.
Ito, T., Matsui, T., and Hong, W. P. (1979). “Design method for the stability analysis of the slope with landing pier.” Soils Found., 19(4), 43–57.
Lee, C., Hull, T. and Poulos, H. (1995). “Simplified pile-slope stability analysis.” Comput. Geotech. 17, 1–16.
Mandal, J., and Labhane, L. (1992). “A procedure for the design and analysis of geosynthetic reinforced soil slopes.” Geotech. Geologic. Eng., 10(4), 291–319.
Meyerhof, G. G. (1957). “The ultimate bearing capacity of foundations on slopes.” Proc., 4th Int. Conf. on Soil Mech. and Found. Eng., London, Vol. 1 384–386.
Poulos, H. G. (1995). “Design of reinforcing piles to increase slope stability.” Can. Geotech. J., 32(5), 808–818.
Sawicki, A., and Lesniewska, D. (1991). “Stability of fabric reinforced cohesive soil slopes.” Geotext. Geomembr., 10, 125–146.
Selvadurai, A., and Gnanendran, C. (1989). “An experimental study of a footing located on a sloped fill: influence of a soil reinforcement layer.” Can. Geotech. J. 26(3), 467–473.
Steenfelt, J. S. (1977), “Scale effect on bearing capacity factor .” Proc., 9th Int. Conf. on Soil Mech. and Found. Eng., Tokyo, Vol. 1, 749–752.
Vesic, A. S. (1973). “Analysis of ultimate loads of shallow foundations.” J. Soil Mech. Found. Div., 99(1), 45–73.
Viggiani, C. (1981). “Ultimate lateral load on piles used to stabilize landslides” Proc., 10th Int. Conf. on Soil Mech. and Found. Eng., Stockholm.
Yoo, C. (2001). “Laboratory investigation of bearing capacity behavior of strip footing on geogrid-reinforced sand slope.” Geotext. Geomembr., 19, 279–298.
Zornberg, J., Sitar, N., and Mitchell, J. (1998). “Performance of geosynthetic reinforced slopes at failure.” J. Geotech. Geoenviron. Eng., 124 (8), 670–683.
Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 131 • Issue 6 • June 2005
Pages: 705 - 715
Copyright
© 2005 ASCE.
History
Received: Dec 11, 2003
Accepted: Oct 29, 2004
Published online: Jun 1, 2005
Published in print: Jun 2005
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