Abstract
Load displacement response and ultimate resistance of piles in sand under uplift load are predicted by load transfer approach. The pile is divided into number of segments and assigned geometrical and material properties according to actual soil pile situation. The shaft resistance is obtained analytically in accordance with existing studies. The proposed method takes into account the length, diameter and relevant surface characteristics of pile and soil properties. The load displacement characteristics and the value of uplift capacity of vertical piles from field test have been predicted. Reasonable agreement has been found out between predicted and observed values of uplift capacity. Load transfer mechanism is capable of predicting the nonlinear variation of load-displacement response of piles.
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Abbreviations
- C n :
-
Perimeter of segment
- f :
-
Unit shaft resistance mobilized at pile movement, z
- f max :
-
Maximum unit shaft resistance mobilized
- K u :
-
Coefficient of lateral earth pressure in uplift
- L n :
-
Length of segment
- Q tip(n):
-
Tip load for segment n
- Q top(n):
-
Load for segment n at head
- S mid(n):
-
Upward movement for segment n at mid point
- S n :
-
Shaft resistance of segment
- S tip(n):
-
Upward tip movement for segment n
- z :
-
Amount of pile movement
- z s :
-
Critical shaft displacement at which the maximum unit shaft resistance is mobilized
- δ:
-
Soil pile friction angle
- ΔS n :
-
Elastic extension of pile at mid point of segment
- σv :
-
Vertical stress at any depth
References
American Petroleum Institute (1977) Recommended practice for planning, designing and construction fixed offshore platforms, APIRP2A
American Petroleum Institute (1984) Recommended practice for planning, designing and construction fixed offshore platforms, APIRP2A
Coyle HM and Reese LC (1966) Load transfer for axially loaded piles in clay. J Soil Mech Found Eng Division, ASCE 92(SM2):1–26
Ismael NF and Klym TW (1979) Uplift Capacity of Short Piles in Sands. J Geotech Eng Divis ASCE 105(GT5):579–594
Kulhawy FH (1985) Drained Uplift Capacity of Drilled Shafts, Proceedings 11th International Conference on Soil Mechanics and Foundation Engineering. Rotterdam, The Netherlands, 3, pp 1549–1552
McClelland B (1974) Design of deep penetration piles for ocean structures. J Geotech Eng Divis ASCE 100(GT7):709–747
Madhav MR and Poooroshahb HB (1988) Pile displacements due to tensile loads. Indian Geotech J 18(1):48–53
Merhof GG and Adams JI (1968) The ultimate uplift capacity of foundation. Can Geotech J Ottawa 5:225–244
Mindlin RD (1936) Force at a point in the Interior of a Semi-Infinite Solid. Physics 7:195
Potyondy JG (1961) Skin friction between various soils␣and construction materials. Geotech Lond 11(4):339–353
Poulous HG and Davis EH (1968) The settlement behavior of single axially loaded incompressible piles and piers. Geotechnique 18:351–371
Poulos HG and Davis EH (1980) Pile Foundation Analysis and Design. John Wiley and Sons, New York
Ramasamy G, Day B and Indrawan E (2004) Studies on Skin Friction on Piles Under Tensile and Compressive Load. Indian Geotech J 34(3):276–289
Reddy ES, O’Reilly M and Champaran D (1997) A software to predict the behavior of tension piles. Comput Struct 64(2):653–658
Reddy ES, O’Reilly M and Champaran D (1998) Modified T–Z model-A software for tension piles. Comput Struct 68(6):653–658
Sowa VA (1970) Pulling capacity of concrete cast In-situ bored piles. Can Geotech J 7:482–493
Sulaiman IH and Coyle HM (1976) Uplift resistance of piles in sand. J Geotech Eng Divis ASCE 102(GT5):559–562
Tomlinson MJ (1987) Pile design and construction practice, 3rd edn. Viewpoint Publication, pp 118
Vijayvergiya VN (1977) Load movement characteristics of piles, Proceedings 4th Symposium of Waterway, Port, Coastal and Ocean Division, Long Beac, California, ASCE, pp 269–284
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Goel, S., Patra, N.R. Prediction of load displacement response of single piles under uplift load. Geotech Geol Eng 25, 57–64 (2007). https://doi.org/10.1007/s10706-006-0006-3
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DOI: https://doi.org/10.1007/s10706-006-0006-3