Analysis of Dynamic Interaction between Hole Embedded in Saturated Soil and Moving Loads Using 2.5D Boundary Element Method

XU Bin; GAO Liang; LEI Xiaoyan; XU Manqing; LIU Linya

doi:10.3969/j.issn.0258-2724.2013.04.011

Volume 26 Issue 4

Aug. 2013

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Journal of Southwest Jiaotong University > 2013 > 26(4): 659-665.

XU Bin, GAO Liang, LEI Xiaoyan, XU Manqing, LIU Linya. Analysis of Dynamic Interaction between Hole Embedded in Saturated Soil and Moving Loads Using 2.5D Boundary Element Method[J]. Journal of Southwest Jiaotong University, 2013, 26(4): 659-665. doi: 10.3969/j.issn.0258-2724.2013.04.011

Citation:

XU Bin, GAO Liang, LEI Xiaoyan, XU Manqing, LIU Linya. Analysis of Dynamic Interaction between Hole Embedded in Saturated Soil and Moving Loads Using 2.5D Boundary Element Method[J]. Journal of Southwest Jiaotong University, 2013, 26(4): 659-665. doi: 10.3969/j.issn.0258-2724.2013.04.011

Citation:

XU Bin, GAO Liang, LEI Xiaoyan, XU Manqing, LIU Linya. Analysis of Dynamic Interaction between Hole Embedded in Saturated Soil and Moving Loads Using 2.5D Boundary Element Method[J]. Journal of Southwest Jiaotong University, 2013, 26(4): 659-665. doi: 10.3969/j.issn.0258-2724.2013.04.011

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Analysis of Dynamic Interaction between Hole Embedded in Saturated Soil and Moving Loads Using 2.5D Boundary Element Method

doi: 10.3969/j.issn.0258-2724.2013.04.011

XU Bin^1,2,
GAO Liang²,
LEI Xiaoyan^{3
,
,},
XU Manqing¹,
LIU Linya³

Received Date: 10 Oct 2012
Publish Date: 25 Aug 2013

Abstract

Abstract

To study the mechanism of interaction between the saturated soil with complex surface and moving loads, a specific 2.5D boundary element method (BEM) for the problem of dynamic responses of the hole embedded in the saturated soil under a moving load was derived systematically. Based on Biot's theory, the frequency wave number domain Green's function for saturated porous media was developed using the Fourier transform method and the potential decomposition approach. Then, dynamic responses in the time-space domain solution were further obtained by synthesizing the wave number solution via inverse fast Fourier transform (IFFT). The results show that using the frequency wave-number boundary integrated equations established by the consistency of the directions of moving load, a 3D spatial model for the dynamic interaction between the holes embedded in the saturated soil with moving loads is convertible to a 2D planar model in the frequency domain, and the 3D complex boundary can be simplified to a problem of 2D boundary element. Thus, the complicated boundary planes can be transformed into computed lines using the 2.5D wave number domain BEM formulation, consequently reducing the amount of computation to a manageable size.
- Green’s function,
- moving loads,
- saturated soil,
- Fourier integral transform

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References(22)

References

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Analysis of Dynamic Interaction between Hole Embedded in Saturated Soil and Moving Loads Using 2.5D Boundary Element Method

doi: 10.3969/j.issn.0258-2724.2013.04.011

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Analysis of Dynamic Interaction between Hole Embedded in Saturated Soil and Moving Loads Using 2.5D Boundary Element Method

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