Comparison of Measured and Theoretical Pressure Distribution below Strip Footings on Sand Soil
Publication: International Journal of Geomechanics
Volume 14, Issue 5
Abstract
The paper presents vertical pressure values occurring under the center line of uniformly loaded laboratory model tests of a surface strip footing on a sand bed. The vertical pressure distribution in medium dense sand was measured using miniature pressure sensors. The experimental measures obtained from the model test program have been compared with values obtained from earlier theories. Tests were performed in plane strain conditions. Finally, the results obtained from experiments and theoretically obtained values were discussed. The results indicated that the distribution of pressure was not the same for every load level. It was found that the pressure distributions fit Westergaard distribution better at lower loads. They approach the pressure predicted by an earlier study as the applied loads reach bearing capacity values.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors thank the Bogazici University Research fund and the Scientific and Technical Research Council of Turkey (TUBITAK) for doctorate scholarship.
References
Algin, H. M. (2000). “Stresses from linearly distributed pressures over rectangular areas.” Int. J. Numer. Anal. Methods Geomech., 24(8), 681–692.
Bagriacik, B. (2010). “Experimental and theoretical analyses of the stress conditions of soils.” M.Sc. thesis, Univ. of Cukurova, Dept. of Civil Engineering, Adana, Turkey.
Boussinesq, J. (1885). Application des potentiels a l’etude de l’equilbre et du movement des solids elastiques, Gauthier-Villars, Paris (in French).
Chakraborty, D., and Kumar, J. (2012). “Bearing capacity of strip foundations in reinforced soils.” Int. J. Geomech., 45–58.
Chen, Q. (2007). “An experimental study on characteristics and behavior of reinforced soil foundation.” Ph.D. dissertation, Louisiana State Univ., Baton Rouge, LA.
Cicek, E. (2011). “Analysis of strip footings on geosynthetic reinforced sand.” Ph.D. dissertation, Institute of Science in Ataturk Univ., Erzurum, Turkey.
Gourvenec, S., Randolph, M., and Kingsnorth, O. (2006). “Undrained bearing capacity of square and rectangular footings.” Int. J. Geomech., 147–157.
Griffiths, D. V., Fenton, G. A., and Manoharan, N. (2006). “Undrained bearing capacity of two-strip footings on spatially random soil.” Int. J. Geomech., 421–427.
Keskin, S., Laman, M., and Baran, T. (2008). “Experimental determination and numerical analysis of vertical stresses under square footings resting on sand.” Teknik Dergi, 19(4), 4521–4538.
Lee, J., and Salgado, R. (2002). “Estimation of footing settlement in sand.” Int. J. Geomech., 1–28.
Naval Facilities Engineering Command. (1982). Soil mechanics: Design manual 7.1, Dept. of the Navy, Alexandria, VA.
Newmark, N. M. (1935). “Simplified computation of vertical pressures in elastic foundations.” Circular No. 24, Univ. of Illinois Engineering Experiment Station, Champaign, IL.
Plaxis [Computer software]. Delft, Netherlands, Plaxis.
Plaxis. (2002). 2D User manual, version 8, Delft Univ. of Technology and Plaxis, Delft, Netherlands.
Rodriguez-Gutierrez, J., and Aristizabal-Ochoa, J. (2012). “Rigid spread footings resting on soil subjected to axial load and biaxial bending. I: Simplified analytical method.” Int. J. Geomech., 109–119.
Skempton, A. W. (1951). “The bearing capacity of clays.” Proc., Building Research Congress, London, 180–189.
Socolic, I., and Ivsic, T. (2007). “Analysis and measurements of settlement for heavy loaded rigid footing.” Proc., 18th European Young Geotechnical Engineers’ Conf., International Society for Soil Mechanics and Geotechnical Engineering, London.
Terzaghi, K. (1943). Theoretical soil mechanics, Wiley, New York.
Westergaard, H. M. (1938). “A problem of elasticity suggested by a problem in soil mechanics: soft material reinforced by numerous strong horizontal sheets.” The mechanics of solids, Macmillan, New York.
Wuttke, F., Kafle, B., Lins, Y., and Schanz, T. (2012). “A macroelement for statically loaded shallow strip foundation resting on unsaturated soil.” Int. J. Geomech., 557–564.
Information & Authors
Information
Published In
International Journal of Geomechanics
Volume 14 • Issue 5 • October 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Dec 19, 2012
Accepted: Aug 8, 2013
Published online: Mar 28, 2014
Discussion open until: Aug 28, 2014
Published in print: Oct 1, 2014
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.