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中国地质学会

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双排抗滑桩的受力特性研究——以柳家坡2号滑坡治理工程为例

李绵绵, 赵法锁, 宋飞, 刘锋

李绵绵, 赵法锁, 宋飞, 等. 双排抗滑桩的受力特性研究——以柳家坡2号滑坡治理工程为例[J]. 西北地质, 2019, 52(2): 181-189. DOI: 10.19751/j.cnki.61-1149/p.2019.02.019
引用本文: 李绵绵, 赵法锁, 宋飞, 等. 双排抗滑桩的受力特性研究——以柳家坡2号滑坡治理工程为例[J]. 西北地质, 2019, 52(2): 181-189. DOI: 10.19751/j.cnki.61-1149/p.2019.02.019
LI Mianmian, ZHAO Fasuo, SONG Fei, et al. Force Characteristics of Double-row Anti-slide Pile in Liujiapo Landslide[J]. Northwestern Geology, 2019, 52(2): 181-189. DOI: 10.19751/j.cnki.61-1149/p.2019.02.019
Citation: LI Mianmian, ZHAO Fasuo, SONG Fei, et al. Force Characteristics of Double-row Anti-slide Pile in Liujiapo Landslide[J]. Northwestern Geology, 2019, 52(2): 181-189. DOI: 10.19751/j.cnki.61-1149/p.2019.02.019

双排抗滑桩的受力特性研究——以柳家坡2号滑坡治理工程为例

基金项目: 

陕西省水利科技项目(2018slkj-14)资助

详细信息
    作者简介:

    李绵绵(1993-),女,河南三门峡人,硕士,从事地质工程方面的研究。E-mail:401200245@qq.com

  • 中图分类号: P642.22

Force Characteristics of Double-row Anti-slide Pile in Liujiapo Landslide

  • 摘要: 岚皋县柳家坡2号滑坡的推力和规模较大,单排桩或者一般的支挡结构已经无法满足抗滑力的要求。而双排抗滑桩在满足抗滑力的同时,更具有刚度大、稳定性高等特点。为了研究岚皋县柳家坡2号滑坡在治理过程中双排抗滑桩各排桩分担的滑坡推力的大小,通过对前后两排桩进行单独受力分析,推导出桩身变形推力的计算公式;通过对双排桩治理后的滑坡进行二维模拟,对滑坡的稳定性、应力与应变以及双排桩的弯矩与剪力进行深入的探究分析。研究表明,抗滑桩在滑面处及锚固段中部受到的剪力最大,且后排桩相较前排桩所承受的滑坡推力更大,这为抗滑桩的设计计算提供了参考意义。
    Abstract: The Liujiapo No. 2 landslide in Langao County has large thrust and scale, so the single-row pile or general retaining structure cannot meet the demand of anti-sliding force when the thrust of the landslide achieves 2000KN/m. It is also difficult to accomplish the construction under the tough topographic conditions and limited land acquisition in the Liujiapo No. 2 landslide. But the double-row anti-slide pile has many benfits of large stiffness, wonderful stability and favorable stress, which is commendably fulfilled the demand of anti-sliding force. In order to study the magnitude of landslide thrust shared by two rows of anti-slide piles in Liujiapo 2 landslide in Langao county, the each force of double-row anti-slide piles has been analyzed separately, and the calculation formula of pile body deformation thrust has been deduced for the elastic foundation beam. The Midas/GTS has been used to analyze the two-dimensional pile under the control of double-row piles, and then the line charts of shear force and the bending moment of landslide anti-slide pile have been obtained. The study not only shows that the shearing force of anti-slide pile is greatest at sliding surface and middle of anchorage section, but also that the back piles bears more landslide thrust than the front ones, which provides reference for the calculation of the reinforcement of anti-slide piles on landslides.
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出版历程
  • 收稿日期:  2018-10-22
  • 修回日期:  2019-03-25
  • 网络出版日期:  2022-07-28
  • 发布日期:  2019-06-04

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