边坡治理中h型支挡结构的应用与分析方法研究
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TG333.17

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国家重点研发计划项目(2022YFB2603400);中国国家铁路集团有限公司科技开发计划项目(K2022G058, L2022G014);中国铁路设计集团有限公司科技开发重点课题(2021A241013)


Analytical Method and Application of H-type Retaining Structure in Slope Engineering
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    摘要:

    边坡h型支挡结构桩土协同作用机理复杂,尚未形成一套科学合理的工程设计评价方法,基于刚性联系梁假定以及前、后桩与桩间土协同作用机理,建立了h型支挡结构受荷分析模型,根据Euler-Bernoulli梁理论结合桩周线性土弹簧提出了前、后桩全桩挠曲微分控制方程,保证了桩身变形在滑面处的变形协调关系,利用中心差分格式及矩阵运算方程组对h型结构全桩内力及变形进行了求解,最后基于克枯滑坡h型支挡结构工程设计案例,通过有限元模型与理论分析模型对比,发现二者计算的桩身最大弯矩与剪力误差在5%以内,验证了文中所提方法的可靠性,可满足h型支挡结构的工程设计需求。

    Abstract:

    The pile-soil interaction mechanism of h-type retaining structures is complicated. As a result, a reasonable engineering design method has not been developed yet. The deflection differential equations of the front and rear piles are established on the basis of the Euler-Bernoulli beam theory and a series of soil springs around piles. It ensures the deformation compatibility of pile at sliding surface, a matrix equation set using the finite difference method was conducted to evaluate the internal force and deformation of h-type retaining structure. A finite element model was established based an h-type retaining structure engineering in Keku landslide. The two methods are used for evaluating the internal force and deformation of piles, the difference in the maximum bending moment and shear force between the finite difference method and FEA method is less than 5%, which indicates that the proposed method is reasonable for evaluating the h-type retaining structure in slope design engineering.

    参考文献
    [1] 欧孝夺,唐迎春,崔伟,等.h型抗滑桩模型试验及数值模拟[J].岩石力学与工程学报,2012,31(9):1936-1943.
    [2] ZHAO B, WANF Y S, WANG Y, et al. Retaining Mechanism and Structural Characteristics of h Type Anti-slide Pile (hTP Pile) and Experience with its Engineering Application[J]. Engineering Geology,2017,222:29-37.
    [3] 李永辉,张信,张鼎浩,等.曲面滑坡条件下h型抗滑桩受力性状模型试验研究[J/OL].工程力学:1-12[2023-05-10].http://kns.cnki.net/kcms/detail/11.2595.O3.20221202.1550.002.html.
    [4] 欧明喜.h型抗滑桩力学机理及其工程应用研究[D].重庆:重庆大学,2012.
    [5] 万雪林,张鹏.长短组合双排桩基坑支护体系分析及应用[J].河北工程大学学报:自然科学版,2023,40(1):9-14.
    [6] 胡聪,张永攀.横观各向同性在抗滑桩加固边坡中的应用[J].河北工程大学学报:自然科学版,2018,35(3):34-38.
    [7] 肖世国.边(滑)坡治理中h型组合抗滑桩的分析方法及工程应用[J].岩土力学,2010,31(7):2146-2152.
    [8] 张永杰,李侑军,曹文贵,等.大型滑坡预应力锚索h型抗滑桩处置方法研究[J].水平地质工程地质,2014,41(5):57-63.
    [9] 张永杰,周欢,冯夏庭,等.h型抗滑桩简化计算方法及其影响因素分析[J].岩石力学与工程学报,2016,35(S1):2935-2943.
    [10] 王羽.h型抗滑桩设计计算方法研究[D].成都:成都理工大学,2011.
    [11] 郭璐遥.h型抗滑桩内力分析及工程应用[D].成都:成都理工大学,2019.
    [12] 铁道部第二勘察设计院.抗滑桩设计与计算[M].北京:中国铁道出版社,1983.
    [13] HASSIOTIS S, CHAMEAU J L, GUNARATNE M. Design Methods for Stabilization of Slopes with Piles[J]. Journal of Geotechnical and Geoenvironmental Engineering,1997,123(4):314-323.
    [14] ITO T, MATSUI T, HONG W P. Design Method for Stabilizing Piles Against Landslide-One Row of Piles[J]. Soils and Foundations,1981,21(1):21-37.
    [15] LIU X R, KOU M M, FENG H, et al. Experimental and Numerical Studies on the Deformation Response and Retaining Mechanism of H-type Anti-sliding Piles in Clay Landslide[J]. Environmental Earth Sciences,2018,77(5):1-14.
    [16] 欧孝夺,唐迎春,崔伟,等.h型抗滑桩模型试验及数值模拟[J].岩石力学与工程学报,2012,31(9):1936-1943.
    [17] 李兵,赵如雄,马洪生,等.圆截面h型抗滑桩受力与变形分析[J].地下空间与工程学报,2021,17(S2):1023-1027.
    [18] 吕俊磊.陡坡填方路基h型桩板墙受力机理研究[J].路基工程,2020,3:140-145.
    [19] 廖超.高速铁路陡坡路基h型桩板墙关键设计参数分析[J].铁道标准设计,2021,65(2):36-41.
    [20] ZHAO B, WANG J L, WANG Y, et al. Retaining Mechanism and Structural Characteristics of h Type Anti-slide Pile (hTP Pile) and Experience with its Engineering Application [J]. Engineering Geology,2017,222:29-37.
    [21] HASSIOTIS S, CHAMEAU J L, GUNARATNE M. Design Method for Stabilization of Slopes with Piles[J]. Journal of Geotechnical and Geoenvironmental Engineering,1997,123(4):314-323.
    [22] 横山幸满.桩结构物的计算方法和计算实例[M].北京:中国铁道出版社,1984.
    [23] 张海洋,刘润,袁宇,等.海上大直径单桩基础p-y曲线修正[J].水利学报,2020,51(2):201-211.
    [24] 徐芝纶.弹性力学[M].第4版.北京:高等教育出版社,2006.
    [25] 张海洋,刘润,贾沼霖.自升式平台插桩对邻近平台桩基础的影响研究[J].岩土工程学报,2021,43(5):867-876.
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张海洋,刘润,宋绪国,李成凤.边坡治理中h型支挡结构的应用与分析方法研究[J].河北工程大学自然版,2023,40(2):15-20,76

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  • 收稿日期:2023-04-13
  • 在线发布日期: 2023-07-05
  • 出版日期: 2023-06-25
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