&nbsp;Dynamic characteristics of the pile under horizontal vibration loading

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (13) : 127-132.

Dynamic characteristics of the pile under horizontal vibration loading

HAN Hongxia1，2, CUI Wuwen3, LI Yurun2

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Abstract

Based on the theory of elastic wave propagation and the mixed boundary problem of radiant stress of circular, the dynamic stiffness and damping of soil around the pile under horizontal harmonic loads can be calculated by using Fourier expansion method, when considering the effect of pile partially separated from soils. Then by applying it to the infinitely thin horizontal layers theory of Novak, the stiffness and damping of the pile and the vibration amplitude level of the pile with the frequency curve are obtained. It is shown that, in the horizontal vibration loads, the dynamic stiffness of pile is smaller than other stiffness, and the horizontal displacement plays an important role in all displacement. The calculated results considering the influence of pile-soil partial separation are less than that of the other literature, which assumed the bonding of the pile with the soil, and are in good agreement with experiments. The calculated results are closer to the test values when the shear modulus of soils is measured by the static test.

Key words

horizontal vibration / dynamic characteristics / dynamic stiffness and damping / resonance peak value / resonance frequency / shear modulus

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HAN Hongxia1，2, CUI Wuwen3, LI Yurun2 . Dynamic characteristics of the pile under horizontal vibration loading[J]. Journal of Vibration and Shock, 2015, 34(13): 127-132

References

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