Volume 12 Issue 1
. 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2012  >  12(1): 19-24
SU Qian, WANG Wu-bin, BAI Hao, LIAO Chao, ZHAO Wei. Bearing capacity mechanism of non-embedded pile-plank structure subgrade[J]. Journal of Traffic and Transportation Engineering, 2012, 12(1): 19-24. doi: 10.19818/j.cnki.1671-1637.2012.01.004
Citation: SU Qian, WANG Wu-bin, BAI Hao, LIAO Chao, ZHAO Wei. Bearing capacity mechanism of non-embedded pile-plank structure subgrade[J]. Journal of Traffic and Transportation Engineering, 2012, 12(1): 19-24. doi: 10.19818/j.cnki.1671-1637.2012.01.004
shu

Bearing capacity mechanism of non-embedded pile-plank structure subgrade

doi: 10.19818/j.cnki.1671-1637.2012.01.004
  • 1.

    Key Laboratory of High-speed Railway Engineering of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

  • 2.

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

More Information
  • Author Bio:

    SU Qian(1972-), male, professor, PhD, +86-28-87602673, suqian@126.com

  • Received Date: 2011-09-12
  • Publish Date: 2012-02-25
    Abstract
  • Sensor components were disposed at the typical section of test subgrade, and the bearing capacity mechanism of non-embedded pile-plank structure in deep collapsible loess foundations was studied by long-term observation.The pile-soil interaction was considered, the concept of comprehensive rotation stiffness was introduced based on the principle of equal stiffness, the vertical and horizontal plane models of the subgrade were installed, and the deformation and mechanical characteristic of the structure were analyzed.Measured result shows that the test value of structural main reinforcement stress agree well with the theoretical calculation value, the difference is about 10%-30%, and the maximum reinforcement stress of 60.60 MPa appears at the cross section of joist.Pile side earth bears about 95% of total load, and no negative friction is produced.The load transfer law of the structure is different from that of traditional subgrade, load can be transferred to deeper bearing layer by pile foundation, which improves the stress state of soft soil section.Half a year, after the laying completion of track construction, the largest accumulated settlement of top surface for bearing plank occurs at the cross section of mid-span, which is 1.0 mm, and meets the requirement of settlement control.

     

    • FullText(HTML)
  • loading
    • References(15)
  • [1]
    FRUHAUF W, SCHOLZ M, STOIBERER H. 困难地基路段的无碴轨道工程[J]. 铁路技术评论, 2005, 11(1): 61-66.

    FRUHAUF W, SCHOLZ M, STOIBERER H. The construction of ballastless track in the difficult foundation section[J]. Railway Technology Review, 2005, 11(1): 61-66. (in Chinese).
    [2]
    王小军, 屈耀辉, 魏永梁, 等. 郑西客运专线湿陷性黄土区试验路堤的沉降观测与预测研究[J]. 岩土力学, 2010, 31(增1): 220-231. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2010S1038.htm

    WANG Xiao-jun, QU Yao-hui, WEI Yong-liang, et al. Settlement observation and prediction research of test embankment in collapsible loess area along Zhengzhou-Xi'an Passen-ger Dedicated Line[J]. Rock and Soil Mechanics, 2010, 31(S1): 220-231. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2010S1038.htm
    [3]
    SU Qian, BAI Hao, WANG Xun, et al. In-situ test on fatigue characteristics of top-mounted dividable pile-board subgrade for high-speed railway[J]. Journal of Southwest Jiaotong University: English Edition, 2010, 18(1): 8-12.
    [4]
    苏谦, 李安洪, 丁兆锋, 等. 郑西客运专线深厚湿陷性黄土地基桩板结构设计分析[J]. 铁道建筑技术, 2007(2): 1-4. doi: 10.3969/j.issn.1009-4539.2007.02.001

    SU Qian, LI An-hong, DING Zhao-feng, et al. Design and analysis on pile-board structure of deep collapsible loess ground along Zhengzhou-Xi'an Passenger Dedicated Line[J]. Railway Construction Technology, 2007(2): 1-4. (in Chinese). doi: 10.3969/j.issn.1009-4539.2007.02.001
    [5]
    SU Qian, LI Xing, BAI Hao. Dynamic response of pile-board subgrade based on large scale model test[J]. Applied Mechanics and Materials, 2011, 71-78: 383-387. doi: 10.4028/www.scientific.net/AMM.71-78.383
    [6]
    魏永幸. 客运专线无砟轨道桩-板结构路基[J]. 铁道工程学报, 2008(4): 19-22. doi: 10.3969/j.issn.1006-2106.2008.04.006

    WEI Yong-xing. Study on pile-slab structure subgrade for ballastless track of passenger dedicated line[J]. Journal of Railway Engineering Society, 2008(4): 19-22. (in Chinese). doi: 10.3969/j.issn.1006-2106.2008.04.006
    [7]
    詹永祥, 蒋关鲁. 桩板结构路基桩-土工作特性[J]. 交通运输工程学报, 2009, 9(4): 38-42. doi: 10.3321/j.issn:1671-1637.2009.04.008

    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. (in Chinese). doi: 10.3321/j.issn:1671-1637.2009.04.008
    [8]
    詹永祥, 蒋关鲁, 胡安华, 等. 遂渝线无碴轨道桩板结构路基动力响应现场试验研究[J]. 岩土力学, 2009, 30(3): 832-835. doi: 10.3969/j.issn.1000-7598.2009.03.046

    ZHAN Yong-xiang, JIANG Guan-lu, HU An-hua, et al. Study of dynamic response of pile-plank embankment of ballastless track based on field test in Suining-Chongqing High-speed Railway[J]. Rock and Soil Mechanics, 2009, 30(3): 832-835. (in Chinese). doi: 10.3969/j.issn.1000-7598.2009.03.046
    [9]
    詹永祥, 蒋关鲁, 魏永幸. 无碴轨道桩板结构路基在地震荷载下的动力响应分析[J]. 中国铁道科学, 2006, 27(6): 22-26. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200606005.htm

    ZHAN Yong-xiang, JIANG Guan-lu, WEI Yong-xing. Dynamic response analysis on the pile-plank structure roadbed of ballastless track under earthquake load[J]. China Railway Science, 2006, 27(6): 22-26. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200606005.htm
    [10]
    詹永祥, 蒋关鲁, 牛国辉, 等. 高速铁路无碴轨道桩板结构路基模型试验研究[J]. 西南交通大学学报, 2007, 42(4): 400-403, 408. doi: 10.3969/j.issn.0258-2724.2007.04.003

    ZHAN Yong-xiang, JIANG Guan-lu, NIU Guo-hui, et al. Model test investigation of pile-plank embankment of ballast-less truck for high-speed railway[J]. Journal of Southwest Jiaotong University, 2007, 42(4): 400-403, 408. (in Chinese). doi: 10.3969/j.issn.0258-2724.2007.04.003
    [11]
    丁兆锋. 路基桩板结构平面简化法则及解析计算[J]. 铁道工程学报, 2011(8): 42-46. https://www.cnki.com.cn/Article/CJFDTOTAL-TDGC201108007.htm

    DING Zhao-feng. Plane simplified rules and analytical calcu-lation for pile-board structure of subgrade[J]. Journal of Railway Engineering Society, 2011(8): 42-46. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDGC201108007.htm
    [12]
    李保俊, 马坤全, 张欣欣. 高速铁路无砟轨道桩板结构路基动力特性研究[J]. 石家庄铁道大学学报: 自然科学版, 2011, 24(1): 63-68. https://www.cnki.com.cn/Article/CJFDTOTAL-SJZT201101017.htm

    LI Bao-jun, MA Kun-quan, ZHANG Xin-xin. Study on dynamic property of pile-plank embankment used in high-speed railway with slab-track[J]. Journal of Shijiazhuang Tiedao University: Natural Science, 2011, 24(1): 63-68. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-SJZT201101017.htm
    [13]
    罗照新, 丁兆锋. 客运专线桩板结构设计方法的探讨[J]. 铁道工程学报, 2008(8): 33-36. https://www.cnki.com.cn/Article/CJFDTOTAL-TDGC200808010.htm

    LUO Zhao-xin, DING Zhao-feng. Discussion on the design method of pile-slab structure for passenger dedicated railway[J]. Journal of Railway Engineering Society, 2008(8): 33-36. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDGC200808010.htm
    [14]
    杨正国, 罗照新. 顶置分幅式路基桩板结构的应用与技术经济分析[J]. 高速铁路技术, 2010, 1(4): 8-10, 25. https://www.cnki.com.cn/Article/CJFDTOTAL-GSTL201004007.htm

    YANG Zheng-guo, LUO Zhao-xin. Application and technical-economic analysis of top divided pile-board structure embankment[J]. High Speed Railway Technology, 2010, 1(4): 8-10, 25. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GSTL201004007.htm
    [15]
    姚洪锡. 武广客运专线软土地基桩板结构设计与应用研究[D]. 成都: 西南交通大学, 2009.

    YAO Hong-xi. Study on the design and application of pile-board structure to soft soil ground for Wuhan-Guangzhou Passenger Dedicated Line[D]. Chengdu: Southwest Jiaotong University, 2009. (in Chinese).
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (626) PDF downloads(748) Cited by()
    Proportional views
    Related

    Copyright《Journal of Traffic and Transportation Engineering》编辑部陕ICP备05001904号-1

    Address ：Editorial Department of Journal of Traffic and Transportation Engineering, Chang 'an University, Middle Section of South Second Ring Road, Xi 'an, Shaanxi（710064） Tel：029-82334388 Email：jygc@chd.edu.cn

    All visit:Today's visit:

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return