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Decrease trends of ultimate loads of eccentrically loaded model strip footings close to a slope

  • Cure, Evrim (Department of Civil Engineering, Karadeniz Technical University) ;
  • Sadoglu, Erol (Department of Civil Engineering, Karadeniz Technical University) ;
  • Turker, Emel (Department of Civil Engineering, Karadeniz Technical University) ;
  • Uzuner, Bayram Ali (Department of Civil Engineering, Karadeniz Technical University)
  • Received : 2013.06.03
  • Accepted : 2013.12.13
  • Published : 2014.05.25

Abstract

A series of bearing capacity tests was conducted with eccentrically loaded model surface and shallow strip footings resting close to a slope to investigate behavior of such footings (ultimate loads, failure surfaces, load-displacement curves, rotation of footing, etc.). Ultimate loads of footing close to slope decreased with increasing eccentricity for both surface and shallow footings. Failure surfaces were not symmetrical, primary failure surfaces occurred on the eccentricity side (the slope side) and secondary failure surfaces occurred on the other side. Lengths of failure surfaces decreased with increasing eccentricity. Footings always rotated towards eccentricity side a few degrees. For eccentrically loaded footing, decrease in ultimate load with increasing eccentricity is roughly in agreement with Customary Analysis.

Keywords

References

  1. Bauer, G.E., Shields, D.H., Scott, J.D. nd Gruspier, J.E. (1981), "Bearing capacity of footings in granular slopes", Proceedings of the Tenth International Conference on Soil Mechanics and Foundation Engineering, Balkema, Rotterdam, The Netherlands, Vol. 2, pp. 33-36.
  2. Bowles, J.E. (1996), Foundation Analysis and Design, McGraw-Hill International Editions, (Fifth Edition), New York, 1175.
  3. Butterfield, R., Harkness, R.H. and Andrawes, K.Z. (1970), "A stereo-photogrammetric method for measuring displacement fields", Geotechnique, 20(3), 308-314. https://doi.org/10.1680/geot.1970.20.3.308
  4. Chen, W.F. (1969), Limit Analysis and Soil Plasticity, Elsevier Scientific Publishing Company.
  5. Clark, J.I., McKeown, S. and Crawford, C.B. (1988), "Field measurements of the behaviour of inclined footings on a natural slope", Can. Geotech. J., 25(4), 662-674. https://doi.org/10.1139/t88-077
  6. Cornforth, D.H. (1964), "Some experiments on the influence of strain conditions on strength of sand", Geotechnique, 14(2), 143-167. https://doi.org/10.1680/geot.1964.14.2.143
  7. Duncan, J.M., Clough, C.W. and Ebeling, R.M. (1990), "Design and performance of earth retaining structures", Geotech. Special Publication, ASCE, 25, 251-277.
  8. Gemperline, M.C. (1988), "Centrifuge modeling of shallow foundations", Proceedings of ASCE Spring Convention, ASCE, pp. 45-70.
  9. Georgiadis, K., Georgiadis, M. and Anagnostopoulos, C. (2013), "Lateral bearing capacity of rigid piles near clay slopes", Soil. Found., 53(1), 144-154. https://doi.org/10.1016/j.sandf.2012.12.010
  10. Graham, J., Andrews, M. and Shields, D.H. (1988), "Stress characteristics for shallow footings in cohesionless slopes", Can. Geotech. J., 25(2), 238-249. https://doi.org/10.1139/t88-028
  11. Hansen, J.B. (1961), "A general formula for bearing capacity", Danish Geotech. Inst., Copenhagen, Bulletin No. 11, 46.
  12. Hansen, J.B. (1970), "A revised and extend formula for bearing capacity", Danish Geotech. Inst., Copenhagen, Bul. No. 28, 21 (successor to Bul. No. 11).
  13. Kirkpatrick, W.M. and Uzuner, B.A. (1975), "Measurement errors in model foundations tests", Istanbul Conference on Soil Mechanics and Foundation Engineering, Istanbul, Turkey, March-April, pp. 98-106.
  14. Kirkpatrick, W.M. and Yanikian, H.A. (1975), "Side friction in plane strain tests", Proceedings of the fourth Southeast Asian Conference on Soil Engineering, Kuala Lumpur, Malaysia, April, pp. 76-84.
  15. Ko, H. and Davidson, W. (1973), "Bearing capacity of footings in plane strain", J. SM & FE Div., ASCE, 99(1), 1-23.
  16. Kusakabe, O., Kimura, T. and Yamaguchi, H. (1981), "Bearing capacity of slopes under strip loads on the top surfaces", Soil. Found., 21(4), 29-40. https://doi.org/10.3208/sandf1972.21.4_29
  17. Lebegue, Y. (1973), "Essais de foundations superficielles sur talus", Proceedings of the 8th International Conference on Soil Mechanics and Foundation Engineering, Moscow, Russia, 4(3), pp. 313.
  18. Lade, P.V. and Lee, K.L. (1976), "Engineering properties of soils", Engineering Report, UCLA-ENG-7652, Los Angeles, CA, USA, pp. 145.
  19. Meyerhof, G.G. (1953), "The bearing capacity of foundations under eccentric and inclined loads", Proceedings of the 3rd International Conference on Soil Mechanics and Foundation Engineering, Switzerland, August, Session 1, pp. 440-445.
  20. Meyerhof, G.G. (1957), "The ultimate bearing capacity of foundations on slopes", Proceedings of the Fourth International Conference on Soil Mechanics and Foundation Engineering, London, UK, August, Vol. 1, pp. 384-386.
  21. Mizuno, T., Takumitsu, Y. and Kawakami, H. (1960), "On the bearing capacity of a slope of cohesionless soil", Soil. Found., 1(2), 30-37. https://doi.org/10.3208/sandf1960.1.2_30
  22. Moroglu, B. (2002), "The bearing capacity of the eccentrically loaded model strip footing on reinforced sand", Ph.D. Thesis, Karadeniz Technical University, Trabzon, Turkey. [In Turkish]
  23. Moroglu, B., Uzuner, B.A. and Sadoglu, E. (2005), "Behaviour of the model surface strip footing on reinforced sand", Indian J. Eng. Mater. Sci., 12(5), 419-426.
  24. Ornek, M., Laman, M., Demir, A. and Yildiz, A. (2012), "Prediction of bearing capacity of circular footings on soft clay stabilized with granular soil", Soil. Found., 52(1), 69-80. https://doi.org/10.1016/j.sandf.2012.01.002
  25. Sadoglu, E. (2009), "The bearing capacity of the eccentrically loaded model shallow strip footing on reinforced sand", Ph.D. Thesis, Karadeniz Technical University, Trabzon, Turkey. [In Turkish]
  26. Sadoglu, E., Cure, E., Moroglu, B. and Uzuner, B.A. (2009), "Ultimate loads for eccentrically loaded model shallow strip footings on geotextile-reinfoced sand", Geotext. Geomembr., 27(3), 176-182. https://doi.org/10.1016/j.geotexmem.2008.11.002
  27. Saran, S. and Reddy, B.S. (1990), "Bearing capacity of eccentrically loaded footings adjacent to cohesionless slopes", Indian Geotech. J., 20(2), 119-142.
  28. Saran, S., Sud, V.K. and Handa, S.C. (1989), "Bearing capacity of footings adjacent to slopes", J. Geotech. Eng., ASCE, 115(4), 553-573. https://doi.org/10.1061/(ASCE)0733-9410(1989)115:4(553)
  29. Shahin, M.A. and Cheung, E.M. (2011), "Stochastic design charts for bearing capacity of strip footings", Geomech. Eng., Int. J., 3(2), 153-167. https://doi.org/10.12989/gae.2011.3.2.153
  30. Shields, D.H., Chandler, N. and Garnier, J. (1990), "Bearing capacity of foundations in slopes", J. Geotech. Eng., 116(3), 528-537. https://doi.org/10.1061/(ASCE)0733-9410(1990)116:3(528)
  31. Shields, D.H., Scott, J.D., Bauer, G.E., Deschenes, J.H. and Barsvary, A.K. (1977), "Bearing capacity of foundations near slopes", Proceedings of the Ninth International Conference on Soil Mechanics and Foundation Engineering, Tokyo, Japan, Vol. 1, pp. 715-720.
  32. Turkish Earthquake Code (2007), "Specification structures to be built in disaster areas", Ministry of Public Works and Settlement, Government of Republic of Turkey, Turkey.
  33. Uzuner, B.A. (1975), "Centrally and eccentrically loaded strip foundations on sand", Ph.D. Thesis, Strathclyde University, Glasgow, Scotland.
  34. Vesic, A.S. (1973), "Analysis of ultimate loads of shallow foundations", JSMFD, ASCE, 99(1), 45-73.
  35. Vesic, A.S. (1975), Bearing Capacity of Shallow Foundations, Foundation Engineering Handbook, Winterkorn and Fang, (First Edition), New York, Van Nostrand Reinhold, 751.
  36. Vessia, G., Cherubini, C., Pieczynska, J. and Pula, W. (2009), "Application of random finite element method to bearing capacity design of strip footing", J. Geo Eng., 4(3), 103-112.
  37. Youssef Abdel Massih, D.S., Soubra, A. and Low, B.K. (2008), "Reliability-based analysis and design of strip footings against bearing capacity failure", J. Geotech. Geoenviron. Eng., 134(7), 917-928. https://doi.org/10.1061/(ASCE)1090-0241(2008)134:7(917)

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