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SHEN Yu-peng, LI Xiao-he, FENG Rui-ling, LI Guang-hui. Settlement properties of pile-plank composite foundation in passenger dedicated line[J]. Journal of Traffic and Transportation Engineering, 2009, 9(6): 32-35. doi: 10.19818/j.cnki.1671-1637.2009.06.007
Citation: SHEN Yu-peng, LI Xiao-he, FENG Rui-ling, LI Guang-hui. Settlement properties of pile-plank composite foundation in passenger dedicated line[J]. Journal of Traffic and Transportation Engineering, 2009, 9(6): 32-35. doi: 10.19818/j.cnki.1671-1637.2009.06.007
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Settlement properties of pile-plank composite foundation in passenger dedicated line

doi: 10.19818/j.cnki.1671-1637.2009.06.007
  • 1.

    School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China

  • 2.

    The Sixth Engineering Bureau of CREC, Beijing 100036, China

More Information
  • Author Bio:

    SHEN Yu-peng(1977-), male, lecturer, PhD, +86-29-10-51683954, ypshen@bjtu.edu.cn

  • Received Date: 2009-05-30
  • Publish Date: 2009-12-25
    Abstract
  • The adjusting principle of settlement on the cushion and the design theory of pile-plank composite foundation were studied.Tow kinds of designs on pile-plank composite foundation were conducted on the Wuqing section of operated Beijing-Tianjin intercity railway.The change characters of settlement-time-load and stress-time-load were contrastively analyzed in the different depthes of reinforcement layer and subjacent bed.The result shows that when the cushion is placed bellow the plank of the foundation, the pore pressure and displacement of reinforcement layer at the level of pile are larger, while the total displacement and post-construction settlement of subjacent bed are relatively smaller.Which indicates that the bearing capacity and consolidation degree of soil among piles increase significantly by inserting the cushion, and the post-construction settlement is more restricted.

     

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