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ZHAN Yong-xiang, JIANG Guan-lu. Pile-soil interacton properties of pile-plank embankment[J]. Journal of Traffic and Transportation Engineering, 2009, 9(4): 38-42. doi: 10.19818/j.cnki.1671-1637.2009.04.008
Citation: ZHAN Yong-xiang, JIANG Guan-lu. Pile-soil interacton properties of pile-plank embankment[J]. Journal of Traffic and Transportation Engineering, 2009, 9(4): 38-42. doi: 10.19818/j.cnki.1671-1637.2009.04.008
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Pile-soil interacton properties of pile-plank embankment

doi: 10.19818/j.cnki.1671-1637.2009.04.008
  • 1.

    School of Civil Engineering, Chongqing University, Chongqing 400030, China

  • 2.

    School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

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  • Author Bio:

    ZHAN Yong-xiang(1979-), male, lecturer, PhD, +86-544-8271345, zhanyongxiang@126.com

  • Received Date: 2009-03-21
  • Publish Date: 2009-08-25
    Abstract
  • In order to investigate the mechanical behavior of pile-plank embankment for high-speed ballastless track under moving load, based on Suining-Chongqing High-speed Railway, the pile-soil interaction characteristics of pile-plank embankment were researched by indoor great scale dynamic model test, in which the loading frequency is 5 Hz and the loading times are 2×105.Test result indicates that the amplitude of dynamic displacement, pile shaft force, dynamic stress in soil between piles remain constant after 1×104 times of vibrant loading, and pile-soil interaction tends toward stability.The amplitude curve of dynamic stress is approximately "K" form with the depth in soil between piles, piles share most dynamic stress compared with soil, and dynamic stress is affected by loading position.Pile structure expands the depth of the dynamic response of roadbed and improves the stress state of roadbed soil.

     

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