Uplift Capacity of Axially Loaded Piles in Clays
Publication: International Journal of Geomechanics
Volume 11, Issue 1
Abstract
The present study aims at determining the uplift capacity of axially loaded piles in clays whose undrained cohesion increases linearly with depth. With the application of the axisymmetric static limit analysis approach, proposed recently by the writers, the variation of the nondimensional uplift factors with respect to changes in the embedment ratio has been obtained for several rates of increase of soil cohesion with depth defined in terms of a nondimensional factor for given values of soil cohesion along the ground surface and diameter of pile. The uplift resistance has been evaluated in the form of the uplift factors, and due to the components of the shaft resistance and the total resistance, respectively. For the given values of and , the magnitude of the uplift resistance increases continuously with an increase in the value of . Furthermore, the values are found to remain unaffected with the variation in the shaft adhesion, whereas, the values increase continuously with an increase in the adhesion factor of the pile shaft.
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References
Ali, J. I. (1968). “Pull-out resistance of anchor plates and anchored piles in soft bentonite clay.” MSc thesis, Duke Univ., Durham, N.C.
Azim, M. F. (1985). “Ultimate uplift capacity of group piles in clay.” MS thesis, Univ. of Texas, E1 Paso, Tex.
Bhatnagar, R. S. (1969). “Pull-out resistance of anchors in silty clay.” MS thesis, Duke Univ., Durham, N.C.
Bishop, A. W. (1966). “The strength of soils as engineering materials.” Géotechnique, 16, 91–128.
Bottero, A., Negre, R., Pastor, J., and Turgeman, S. (1980). “Finite element method and limit analysis theory for soil mechanics problem.” Comput. Methods Appl. Mech. Eng., 22(1), 131–149.
Das, B. M. (1989). “Uplift capacity of metal piles in clay.” Proc., 8th Int. Conf. on Offshore Mechanics and Arctic Engineering, Vol. 1, ASME, New York, 519–524.
Das, B. M., and Seeley, G. R. (1982). “Uplift capacity of pipe piles in saturated clay.” Soils Found., 22(1), 91–94.
Khatri, V. N., and Kumar, J. (2009a). “Bearing capacity factor under for piles in clays.” Int. J. Numer. Analyt. Meth. Geomech., 33(9), 1203–1225.
Khatri, V. N., and Kumar, J. (2009b). “Vertical uplift resistance of circular plate anchors in clay under undrained condition.” Comput. Geotech., 36(8), 1352–1359.
Kouzer, K. M., and Kumar, J. (2009). “Vertical uplift capacity of equally spaced horizontal strip anchors in sand.” Int. J. Geomech., 9(5), 230–236.
Meyerhof, G. G. (1973). “Uplift resistance of inclined anchors and piles.” Proc. 8th Int. Conf. on Soil Mechanics and Foundation Engineering, Moscow, 167–172.
Shelke, A., and Patra, N. R. (2008). “Effect of arching on uplift capacity of pile groups in sand.” Int. J. Geomech., 8(6), 347–354.
Shin, E. C., Das, B. M., Puri, V. K., Yen, S. C., and Cook, E. E. (1993). “Ultimate uplift capacity of model rigid metal piles in clay.” Geotech. Geologic. Eng., 11, 203–215.
Sloan, S. W. (1988). “Lower bound limit analysis using finite elements and linear programming.” Int. J. Numer. Analyt. Meth. Geomech., 12, 61–77.
Sowa, V. A. (1970). “Pulling capacity of concrete cast in situ bored piles.” Can. Geotech. J., 7, 482–493.
Tian, Y., and Cassidy, M. J. (2008). “Modelling of pile-soil interaction and its application in numerical simulation.” Int. J. Geomech., 8(4), 213–229.
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© 2011 ASCE.
History
Received: Oct 21, 2009
Accepted: Feb 24, 2010
Published online: Mar 12, 2010
Published in print: Feb 2011
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