DOI QR코드

DOI QR Code

Experimental investigation of the uplift capacity of group anchor plates embedded in sand

  • Emirler, Buse (Department of Civil Engineering, Cukurova University) ;
  • Tolun, Mustafa (Department of Civil Engineering, Cukurova University) ;
  • Laman, Mustafa (Department of Civil Engineering, Cukurova University)
  • Received : 2015.09.10
  • Accepted : 2016.07.04
  • Published : 2016.11.25

Abstract

In this study, the uplift capacity of anchor plates embedded in sand was investigated by conducting model tests. Square shaped anchors were used in the tests and parameters such as relative density of sand, embedment ratio (H/B), spacing ratio between anchors (S/B) and anchor configuration affecting the uplift capacity were investigated. Breakout factor and group efficiency which are dimensionless parameters were used to show the results. A series of finite element analyses and analytical solutions were additionally performed to ascertain the validity of the findings from the laboratory model tests and to supplement the results of the model tests. It can be concluded that the embedment depth in dense sand soil condition is the most important parameter with respect to the other parameters as to influencing the uplift capacity of group anchors.

Keywords

Acknowledgement

Supported by : TUBITAK (The Scientific and Technological Research Council of Turkey)

References

  1. Adams, J.K. and Hayes, D.C. (1967), "The uplift capacity of shallow foundations", Ontario Hydro, Research Division, 19(1), 1-13.
  2. Andreadis, A., Burley, E. and Harvey, C. (1981), "Embedded anchor response to uplift loading", J. Geotech. Eng., 107(1), 59-78.
  3. ASTM D 2487 (2006), Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System).
  4. ASTM D 4253 (2006), Standart Test Methods for Maximum Index Density and Unit Weight of Soils Using a Vibratory Table.
  5. ASTM D 4254 (2006), Standart Test Methods for Minimum Index Density and Unit Weight of Soils and Calculation of Relative Density.
  6. Baker, W.H. and Kondner, R.L. (1966), "Pullout load capacity of a circular earth anchor buried in sand", Highway Research Board, Washington, DC, USA, Issue number 108, pp. 1-10.
  7. Balla, A. (1961), "The resistance to breaking-out of mushroom foundations for pylons", Proceedings of the 5th International Conference on Soil Mechanics and Foundation Engineering, Paris, France, July.
  8. Bhattacharya, P. and Kumar, J. (2013), "Horizontal pullout capacity of a group of two vertical plate anchors in clay", Geomech. Eng., Int. J., 5(4), 299-312. https://doi.org/10.12989/gae.2013.5.4.299
  9. Bhattacharya, P. and Kumar, J. (2014a), "Vertical pullout capacity of a horizontal anchor plates in the presence of seismic and seepage forces", Geomech. Geoeng.: Int. J., 9(4), 294-302. https://doi.org/10.1080/17486025.2014.902116
  10. Bhattacharya, P. and Kumar, J. (2014b), "Pullout capacity of inclined plate anchors embedded in sand", Can. Geotech. J., 51(11), 1365-1370. https://doi.org/10.1139/cgj-2014-0114
  11. Bildik, S., Laman, M. and Suleiman, M.T. (2012), "Numerical investigations of uplift behaviour of behaviour of multiple plate anchors", Proceedings of the 10th International Congress on Advances in Civil Engineering, Ankara, Turkey, October.
  12. Consoli, N., Ruver, C. and Schnaid, F. (2013), "Uplift performance of anchor plates embedded in cementstabilized backfill", J. Geotech. Geoenviron. Eng., 139(3), 511-517. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000785
  13. Das, B.M. (1999), Shallow Foundations Bearing Capacity and Settlement, Chapter 8, USA.
  14. Das, B.M. and Seeley, G.R. (1975), "Breakout resistance of horizontal anchors", J. Geotech. Eng., 101(9), 999-1003.
  15. Demir, A. and Ok, B. (2015), "Uplift response of multi-plate helical anchors in cohesive soil", Geomech. Eng., Int. J., 8(4), 615-630. https://doi.org/10.12989/gae.2015.8.4.615
  16. Dickin, E.A. (1988), "Uplift behaviour of horizontal anchor plates in sand", J. Geotech. Eng., 114(11), 1300-1317. https://doi.org/10.1061/(ASCE)0733-9410(1988)114:11(1300)
  17. Dickin, E.A. and Leung, C.F., (1990), "Performance of piles with enlarged bases subject to uplift forces", Can. Geotech. J., 27(5), 546-556. https://doi.org/10.1139/t90-070
  18. Dickin, E.A. and Leung, C.F. (1992), "The influence of foundation geometry on the uplift behaviour of piles with enlarged bases", Can. Geotech. J., 29(3), 498-505. https://doi.org/10.1139/t92-054
  19. Dickin, E.A. and Laman, M. (2007), "Uplift response of strip anchors in cohesionless soil", Adv. Eng. Software, 38(9), 618-625. https://doi.org/10.1016/j.advengsoft.2006.08.041
  20. Emirler, B. (2013), "Investigation of uplift behaviour of group anchors", M.Sc. Dissertation; Cukurova University, Adana, Turkey. [In Turkish]
  21. Emirler, B., Bildik, S. and Laman, M. (2015), "Numerical investigation of group anchors", Proceedings of the International Foundations Congress and Equipment Expo 2015, San Antonio, TX, USA, March.
  22. Geddes, J.D. and Murray, E.J. (1996), "Plate anchor groups pulled vertically in sand", Journal of Geotech. Eng., 122(7), 509-516. https://doi.org/10.1061/(ASCE)0733-9410(1996)122:7(509)
  23. Ghosh, P. and Santhoshkumar, G. (2015), "Vertical uplift capacity of two nearby horizontal strip anchors using the method of stress characteristics", Int. J. Geomech., 16(1), 04015015-1-15.
  24. Hanna, T., Sparks, R. and Yilmaz, M. (1972), "Anchor behaviour in sand", J. Soil Mech. Found., 98(11), 1187-1207.
  25. Hueckel, S. (1957), "Model tests on anchoring capacity of vertical and inclined plates", Proceedings of the 4th International Conference on Soil Mechanics and Foundation Engineering, Butterworth Scientific Publications, London, UK, August.
  26. Keskin, M.S. (2015), "Model studies of uplift capacity behavior of square plate anchors in geogridreinforces sand", Geomech. Eng., Int. J., 8(4), 595-613. https://doi.org/10.12989/gae.2015.8.4.595
  27. Kumar, J. and Bhoi, M.K. (2009), "Vertical uplift capacity of equally spaced multiple strip anhors in sand", Geotech. Geol. Eng., 27(3), 461-472. https://doi.org/10.1007/s10706-008-9247-7
  28. Kumar, J. and Kouzer, K.M. (2008), "Vertical uplift capacity of a group of shallow horizontal anchors in sand", Geotechnique, 58(10), 821-823. https://doi.org/10.1680/geot.2008.58.10.821
  29. Laman, M. (1995), "The moment carrying capacity of short pier foundations in clay", PhD Dissertation, University of Liverpool, England, UK.
  30. Larnach, W.J. (1972), "The pull-out resistance of inclined anchors installed singly and in groups in sand", Ground Eng., 5(4), 14-17.
  31. Larnach, W.J. (1973), "Anchors 3-The behaviour of grouped inclined anchors in sand", Ground Eng., 6(6), 34-41.
  32. Meyerhof, G.G. and Adams, J.I. (1968), "The ultimate uplift capacity of foundations", Can. Geotech. J., 5(4), 225-244. https://doi.org/10.1139/t68-024
  33. Murray, E.J. and Geddes, J.D. (1987), "Uplift behaviour of plates in sand", J. Geotech. Eng., 113(3), 202-215. https://doi.org/10.1061/(ASCE)0733-9410(1987)113:3(202)
  34. Neely, W.J. (1971), "The ultimate resistance of anchor plates in sand", Ph.D. Dissertation; Queen's University, UK.
  35. Niroumand, H. and Kassim, K.A. (2014), "Square plates as symmetrical anchor plates under uplift test in loose sand", Geomech. Eng., Int. J., 6(6), 593-612. https://doi.org/10.12989/gae.2014.6.6.593
  36. Ovesen, N.K. (1981), "Centrifuge tests of uplift capacity of anchors", Proceedings of the 10th International Conference on Soil Mechanics and Foundation Engineering, Stockholm, Sweden, June.
  37. Ozaydin, K. (1989), Soil Mechanics, Birsen Bookstore, Istanbul, Turkey. [In Turkish]
  38. Smith, J.E. (1962), Deadman Anchorages in Sand, Technical Report R-199; U.S. Naval Civil Engineering Lab, Port Hueneme, CA, USA.
  39. Tagaya, K., Scott, R.F. and Aboshi, H. (1988), "Pullout resistance of buried anchor in sand", Soils Found., 28(3), 114-130. https://doi.org/10.3208/sandf1972.28.3_114
  40. Vanitha, L., Patra, N. and Chandra, S. (2007), "Uplift capacity of pile group anchors", Geotech. Geol. Eng., 25(3), 339-347. https://doi.org/10.1007/s10706-006-9114-3
  41. Vesic, A.S. (1971), "Breakout resistance of objects embedded in ocean bottom", J. Soil Mech. Found. 97(9), 1183-1205.

Cited by

  1. Response of square anchor plates embedded in reinforced soft clay subjected to cyclic loading vol.17, pp.2, 2016, https://doi.org/10.12989/gae.2019.17.2.165
  2. Performance of novel dynamic installed anchors during installation and monotonic pullout vol.18, pp.2, 2016, https://doi.org/10.12989/gae.2019.18.2.153
  3. Experimental and numerical study on square anchor plate groups in geogrid reinforced sand vol.26, pp.6, 2016, https://doi.org/10.1680/jgein.19.00051
  4. Vertical uplift resistance of an innovative plate anchor embedded in sand vol.39, pp.7, 2016, https://doi.org/10.1080/1064119x.2020.1773590