Abstract
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 uplift pile failure is regarded as the soil failure, a rational calculation method was proposed for calculating the deformation, ultimate displacement and shear resistance of piles. The distributions of frictional resistance and the shear displacement along the pile length were obtained with the method. The comparisons were made between the measurement results and the present results. The present theoretical results agree well with the measurement results, with the average difference being less than 12% before failure. The comparisons show that the proposed method is reasonable for uplift design and engineering construction of piles.
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Foundation item: Project(05-0686) supported by the Program for New Century Excellent Talents in University; Project(200550) supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China
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Yang, Xl., Zou, Jf. Displacement and deformation analysis for uplift piles. J. Cent. South Univ. Technol. 15, 906–910 (2008). https://doi.org/10.1007/s11771-008-0165-x
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DOI: https://doi.org/10.1007/s11771-008-0165-x