Abstract
Pile drivability is a key problem during the stage of design and construction installation of pile foundations. The solution to the one dimensional wave equation was used to determine the impact force at the top of a concrete pile for a given ram mass, cushion stiffness, and pile impedance. The kinematic equation of pile toe was established and solved based on wave equation theory. The movements of the pile top and pile toe were presented, which clearly showed the dynamic displacement, including rebound and penetration of pile top and toe. A parametric study was made with a full range of practical values of ram weight, cushion stiffness, dropheight, and pile impedance. Suggestions for optimizing the parameters were also presented. Comparisons between the results obtained by the present solution and in-situ measurements indicated the reliability and validity of the method.
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Project (No. 50278087) supported by the National Natural Science Foundation of China
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Ren-peng, C., Shi-fang, W. & Yun-min, C. Study on pile drivability with one dimensional wave propagation theory. J. Zheijang Univ.-Sci. 4, 683–693 (2003). https://doi.org/10.1631/BF02851609
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DOI: https://doi.org/10.1631/BF02851609