Abstract
This study describes series of experimental investigations on the uplift capacities for 3D models of belled anchors and formation of respective nonlinear failure surfaces in sand around 2D panels. The variation in uplift capacities due to the influence of embedment ratios of 3, 4 and 5, diameter ratios of 0.28, 0.33, 0.38 and 0.46, and bell angles of 45°, 54°, 63° and 72° in dry sand is evaluated by 3D model study, and the present 62.5% experimental data are within a range of + 12.46 to − 15.14% variation based on a few previous multiple regression models. The observation on the variation of nonlinear failure pattern in sand around 2D panels is correlated with the effects of variable parameters. In order to visualise the pattern of failure surfaces clearly, 3-mm-thick layers of dyed sand are placed within 18-mm-thick non-dyed sand layers maintaining the same density of sand. The horizontal extent of failure points and corresponding embedment depth are plotted in X–Y coordinate. The mobilised shear and dead-weight of each slice wedge are evaluated by horizontal slice method, and vertical equilibrium is implemented for elementary forces. The variation in analytical uplift capacities is used to illustrate the effects of variable parameters. The variation of maximum horizontal extent of failure points at sand surface and passive, transition and active zones within failure domain is also illustrated. The experimental 81.25% data are within + 10.08 to − 9.74%, and rest are within + 15.85 to − 17% variation with respect to the analytical uplift capacities.
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Abbreviations
- L :
-
Embedment depth of both 3D model and 2D panel
- T b :
-
Bell width in 2D panel
- T s :
-
Shaft width in 2D panel
- USCS:
-
Unified soil classification system
- W 3D :
-
Self-weight of 3D model
- W 3D.(γ .exptl.):
-
Weight of sand as equal to the volume of 3D model within the wedge
- γ :
-
Soil density
- ϕ :
-
Soil internal friction angle and
- ψ :
-
Soil dilatancy angle
References
Balla A (1961) The resistance to breaking-out of mushroom foundations for pylons. In: Proceedings of 5th international conference on soil mechanics and foundation engineering, vol 1, Paris, pp 569–576
Bera AK (2014) Parametric study on uplift capacity of anchor with tie in sand. Korean Soc Civ Eng 18(4):1028–1035
Chae D, Cho W, Na HY (2012) Uplift capacity of belled pile in weathered sandstones. Int Soc Offshore Polar Eng 22(4):297–305
Chottapadhyay BC, Pise PJ (1986) Breakout resistance of horizontal anchors in sand. Jpn Soc Soil Mech Found Eng 26(4):16–26
Clemence SP, Veesaert CJ (1977) Dynamic uplift resistance of anchors in sand. In: Proceedings of the international conference on soil–structure interaction, Roorkee, pp 389–397
Deb T, Pal SK (2017) Study on uplift behaviour of single belled anchor piles in sand bed and multiple regression analyses. Int Rev Civ Eng Praise Worthy Prize 3(8):97–112. https://doi.org/10.15866/irece.v8i3.12001
Dickin EA (1988) Uplift behavior of horizontal anchor plates in sand. J Geotech Eng ASCE 114(11):1300–1317
Dickin EA, Leung CF (1990) Performance of piles with enlarged bases subjected to uplift forces. Can Geotech J 27(5):546–556
Dickin EA, Leung CF (1992) The influence of foundation geometry on uplift behaviour of piles with enlarged bases. Can Geotech J 29(3):498–505
Downs DI, Chieurzzr I (1966) Transmission tower foundations. ASCE J Power Div 92(P02):91–114
Frydman S, Shaham I (1989) Uplift capacity of slab anchors in sand. Can Geotech J 114(11):1300–1317
Geddes JD, Murray EJ (1987) Uplift of anchor plates in sand. J Geotech Eng ASCE 113(3):202–215
Ghaly A, Hanna A (1994) Ultimate uplift resistance of single vertical anchors. Can Geotech J 31:661–672
Ghaly A, Hanna A, Hanna M (1991) Uplift behavior of screw anchors in sand. I: dry sand. J Geotech Eng ASCE 117(5):773–793
Ghosh A, Bera AK (2010) Effect of geotextile ties on uplift capacity of anchors embedded in sand. Geotech Geol Eng 28:567–577
Ilamparuthi K, Dickin EA (2001) Predictions of the uplift response of model belled piles in geogrid-cell-reinforced sand. Geotext Geomembr 19:89–109
Ilamparuthi K, Muthukrishnaiah K (1999) Anchors in sand bed: delineation of rupture surface. Ocean Eng 26:1249–1273
Ilamparuthi K, Dickin EA, Muthukrisnaiah K (2002) Experimental investigation of the uplift behavior of circular plate anchors embedded in sand. Can Geotech J 39:648–664
IS:4091-1979 (1995) Code of practice for design and construction of foundations for transmission line towers and poles
Jacky J (1944) Coefficient of earth pressure at rest. J Soc Hung Archit Eng 78:355–358
Kotter F (1903) Die Bestimmung des Drucks an gekru ¨mmten Gleitfla¨chen, eine Aufgabe aus der Lehre vom Erddruck, Sitzungsberichte
Krishnaswamy NR, Parashar SP (1994) Uplift behaviour of plate anchors with geosynthetics. Geotext Geomembr 13:67–89
Kumar J (2001) Seismic vertical uplift capacity of strip anchors. Geotech Inst Civ Eng 51(3):275–279
Kumar J, Kouzer KM (2008) Vertical uplift capacity of a group of shallow horizontal anchors in sand. Geotechnique 58(10):821–824
Mahmoud MA, Abdrabbo FM (1989) Bearing capacity tests on strip footing on reinforced sand subgrade. Can Geotech J 26(1):154–159
Majer J (1955) Zur Berechnung Von Zugfundamenten. Osterreichische Bauzeitschrift 10, H.5
Matsuo M (1967) Study of uplift resistance of footing. I. Soils Found 7(4):1–37
Meyerhof GG, Adams JI (1968) The ultimate uplift capacity of foundation. Can Geotech J 5(4):225–244
Mittal S, Mukherjee S (2013) Vertical uplift capacity of a group of helical screw anchors in sand. Indian Geotech J 43(3):238–250
Mors H (1959) The behaviour of mast foundations subject to tensile forces. Bautechnik 10:367–378
Nazir R, Moayedi H, Pratikso A, Mosallanezhad M (2014) The uplift load capacity of an enlarged base pier embedded in dry sand. Saudi Soc Geosci. https://doi.org/10.1007/s12517-014-1721-3
Ovesen NK (1981) Centrifuge tests to determine the uplift capacity of anchor slabs in sand. In: Proceedings, 10th international conference on soil mechanics and foundation engineering, vol 1, Stockholm, pp 717–722
Peck RB, Hanson WE, Thornburn TH (1974) Foundation engineering, 2nd edn. Wiley, New York
Rao KSS, Kumar J (1994) Vertical uplift capacity of Horizontal anchors. J Geotech Eng 120(7):1134–1147
Rowe RK, Davis EH (1982) The behaviour of anchor plates in sand. Géotechnique 32(1):25–41
Saeedy HS (1987) Stability of circular vertical earth anchors. Can Geotech J 24:452–456
Saran S, Ranjan G, Nene AS (1986) Soil anchors and constitutive laws. J Geotech Eng 112(12):1084–1100
Sutherland B, FInlayt W, Fadl MO (1982) Uplift capacity of embedded anchors in sand. In: Proceedings, 3rd international conference on the behaviour of offshore structures, vol 2, Cambridge, pp 451–463
Tagaya K, Scott RF, Aboshi H (1988) Pull-out resistance of buried anchors in sand. Soils Found 28(3):114–130
Turner EA (1962) Uplift resistance of transmission tower footings. J Power Div ASCE 88:17–32
Vanitha L, Patra NR, Chandra S (2007) Uplift capacity of pile group anchors. Geotech Geol Eng 25:339–347
Veiskarami M, Eslami A, Kumar J (2011) End bearing capacity of driven piles in sand using the stress characteristics method: analysis and implementation. Can Geotech J 48(10):1570–1586
Vermeer PA, Sutjiadi W (1985) The uplift resistance of shallow embedded anchors. In: Proceedings, 11th international conference on soil mechanics and foundation engineering, vol 4, San Francisco, pp 1635–1638
Wenbai L, Jian Z, Mohr MT (2004) Uplift bearing tests and calculations of belled piles in loess of arid regions. In: 5th International conference on case histories in geotechnical engineering, New York, pp 13–17
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Deb, T., Pal, S.K. Study on the Uplift Behaviour and Failure Pattern of Single Belled Anchor with 3D and 2D Models in Cohesionless Soil Bed. Iran J Sci Technol Trans Civ Eng 43, 327–343 (2019). https://doi.org/10.1007/s40996-018-0144-x
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DOI: https://doi.org/10.1007/s40996-018-0144-x