Abstract
This study considers the torsional vibration of a pipe pile in a transversely isotropic saturated soil layer. Based on Biot’s poroelastic theory and the constitutive relations of the transversely isotropic medium, the dynamic governing equations of the outer and inner transversely isotropic saturated soil layers are derived. The Laplace transform is used to solve the governing equations of the outer and inner soil layers. The dynamic torsional response of the pipe pile in the frequency domain is derived utilizing 1D elastic theory and the continuous conditions at the interfaces between the pipe pile and the soils. The time domain solution is obtained by Fourier inverse transform. A parametric study is conducted to demonstrate the influence of the anisotropies of the outer and inner soil on the torsional dynamic response of the pipe pile.
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Supported by: The 111 Project under Grant No. B13024, the National Natural Science Foundation of China under Grant Nos. U1134207 and 51378177 and the Program for New Century Excellent Talents in University under Grant No. NCET-12-0843.
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Zheng, C., Hua, J. & Ding, X. Torsional vibration of a pipe pile in transversely isotropic saturated soil. Earthq. Eng. Eng. Vib. 15, 509–517 (2016). https://doi.org/10.1007/s11803-016-0340-2
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DOI: https://doi.org/10.1007/s11803-016-0340-2