缺陷桩周围成层土振动响应解析解及其在旁孔透射波法中的应用

doi:10.13722/j.cnki.jrme.2018.0707

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Abstract A defect pile-layered soil coupled model considering the three-dimensional symmetric vibration of surrounding soil was proposed. An analytical solution of dynamic responses of surrounding soil subjected to the vertical vibration of piles in frequency domain was deduced and，further，a semi-analytical expression in time domain was obtained by applying inverse Fourier transform. A simplified model was then proposed，and the validity of the presented solution was proved by compared with the result solved by FEA software. Parameters in three cases of defect pile-homogeneous soil，intact pile-layered soil and defect pile-layered soil were discussed to research their influence on dynamic responses of surrounding soil，and the response law of pile-surrounding soil was concluded. Furthermore，some parameters of the parallel seismic method were also studied as well to further clarify considerations. The results can guide the application of the parallel seismic method on site.

Key words： pile foundations defect piles multi-layered soil parallel seismic method Fourier transform；FEA

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	Articles by authors
	WU Juntao1
	2
	WANG Kuihua1
	2
	LIU Xin1
	2
	XIAO Si1
	2

Cite this article:

WU Juntao1,2,WANG Kuihua1, et al. An analytical solution of dynamic responses of multi-layered soil around defect piles and its application in parallel seismic method[J]. , 2019, 38(1): 203-216.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2018.0707 OR http://www.rockmech.org/EN/Y2019/V38/I1/203

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