Analysis on Dynamic Transfer Characteristics of Low Geosynthetic-Reinforced Embankments Supported by CFG Piles Subjected to High-Speed Railway

Long Long Fu; Quan Mei Gong; Yang Wang

doi:10.4028/www.scientific.net/AMR.368-373.2575

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Analysis on Dynamic Transfer Characteristics of Low Geosynthetic-Reinforced Embankments Supported by CFG Piles Subjected to High-Speed Railway
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Analysis on Dynamic Transfer Characteristics of Low Geosynthetic-Reinforced Embankments Supported by CFG Piles Subjected to High-Speed Railway

Abstract:

To investigate the dynamic transfer characteristics of low geosynthetic-reinforced embankments supported by CFG piles under high-speed train load, a numerical study has been conducted through dynamic finite element method on basis of the dynamic field test on a cross-section of Beijing-Shanghai high-speed railway. The comparative analysis on results of numerical study and field test indicated the distribution characteristics of vertical dynamic stress induced by high-speed train load in subgrade soil under railway line. The numerical results also suggested a high stress area in subgrade where vertical dynamic stress is over 1kPa. Conclusions of this work can provide reference for both design and estimation of long-term settlement of low geosynthetic-reinforced embankments supported by CFG piles for high-speed railway.

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Periodical:

Advanced Materials Research (Volumes 368-373)

Pages:

2575-2580

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.368-373.2575

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Online since:

October 2011

Authors:

Long Long Fu, Quan Mei Gong, Yang Wang

Keywords:

CFG Piles, Dynamic Finite Element Method, Dynamic Transfer, Low Geosynthetic-Reinforced and Pile-Supported Embankments

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