Results 251 to 260 of about 17,931 (304)

Uplift Resistance of Piles in Sand

Journal of the Geotechnical Engineering Division, 1976
During 1966, the writers had the opportunity to conduct tests relating skin friction to pile movement for model steel pipe piles embedded in poorly graded Arkansas River sand of medium density. The apparatus used to conduct the tests and correlations with the behavior of full-scale piles loaded in compression were reported by the writers.
Ibrahim H. Sulaiman, Harry M. Coyle
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Uplift Capacity of Piles in Sand

Journal of Geotechnical Engineering, 1986
An analytical method has been proposed to predict the ultimate uplift capacity of piles embedded in sand. The method takes into consideration the length, diameter, and surface characteristics of piles and the soil properties. Typical charts for evaluation of average skin friction values for piles are presented through figures in dimensionless ...
B. C. Chattopadhyay, P. J. Pise
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Displacement and deformation analysis for uplift piles

Journal of Central South University of Technology, 2008
On the assumptions that the shear resistance increases linearly with increasing shear displacement between the uplift pile and surrounding soil, that the axis force is distributed as parabola along the pile length, that elastic distortion occurs when the pile is loaded, that the displacement of pile is in accord with that of the soil, and that the ...
Xiao-li Yang, Jin-feng Zou
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Uplift Capacity of Group Piles in Sand

Journal of the Geotechnical Engineering Division, 1976
The purpose of this paper is to present some recent laboratory model test results to study the variation of uplift capacity of pile groups with various shape, size, and pile spacings in loose sand. However, it may be pointed out that for all of these tests the length-to-diameter ratios of the piles were kept constant, and other variables such as soil ...
Braja M. Das, Gerald R. Seeley, Jonathan E. Smith   +2 more
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Uplift Resistance of Enlarged Base Pile Foundations

Indian Geotechnical Journal, 2019
Pile foundations with enlarged bases are effective either in expansive soils or when piles are liable to attract tensile loading. In this paper, the uplift behaviour of enlarged base piles (referred to as under-reamed piles in the text) in layered strata has been experimentally investigated, using half-space small-scale 1g models, and compared with ...
Mary Schafer, Santana Phani Gopal Madabhushi   +1 more
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Uplift Capacity of Piles and Pile Groups in Sand

OCEANS '86, 1986
Offshore structures supported by pile foundations are sometimes subjected to uplifting forces due to wave, wind, and ice actions. This paper presents the results of laboratory model tests for ultimate uplift capacity of single and group metal piles embedded in saturated medium and dense sand. The results have been compared with existing theories.
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Uplift Resistance of Coated Driven Steel Piles

IFCEE 2015, 2015
Results of axial tension (uplift) tests on driven open-end pipe piles and H-Piles with difference surface coatings are presented. Piles included plain steel, galvanized steel and piles coated with Slickcoat, a silicone epoxy surface coating. Open-end pipe piles with outside diameters of 2.875 in. and 4.5 in.
Alan J. Lutenegger, Jahan Khalili
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Uplift Capacity of Model Piles Under Oblique Loads

Journal of the Geotechnical Engineering Division, 1976
Structures such as transmission towers and mooring systems for ocean surface or submerged platforms with pile foundations are subjected to uplifting forces. A limited amount of work is found in literature regarding the theoretical analysis and experimental determination of the uplift capacity of pile foundations in granular and cohesive soils.
Braja M. Das, Dorairaja Raghu, Gerald R. Seeley   +2 more
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Pile Settlement and Uplift in Liquefying Sand Deposit

Geotechnical Testing Journal, 2009
Abstract This paper describes a test program using explosives to induce excess pore pressure in a large deposit of saturated sand supporting two friction piles (W150×18 SI wide-flange beams). Variables studied were pile settlement and uplift versus the pore pressure ratio, initial static safety factor of the piles, and peak particle ...
Wayne A. Charlie, David J. Allard, Donald O. Doehring   +2 more
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Uplift Capacity of Axially Loaded Piles in Clays

International Journal of Geomechanics, 2011
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 ...
Vishwas N. Khatri, Jyant Kumar
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