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不同位移模式下衡重式路肩墙离心模型试验研究

李浩, 罗强, 张良, 蒋良潍, 张家国

李浩, 罗强, 张良, 蒋良潍, 张家国. 不同位移模式下衡重式路肩墙离心模型试验研究[J]. 岩土工程学报, 2015, 37(4): 675-682. DOI: 10.11779/CJGE201504013
引用本文: 李浩, 罗强, 张良, 蒋良潍, 张家国. 不同位移模式下衡重式路肩墙离心模型试验研究[J]. 岩土工程学报, 2015, 37(4): 675-682. DOI: 10.11779/CJGE201504013
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LI Hao, LUO Qiang, ZHANG Liang, JIANG Liang-wei, ZHANG Jia-guo. Centrifugal model tests on shoulder balance weight retaining wall with various motion modes[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(4): 675-682. DOI: 10.11779/CJGE201504013
Citation: LI Hao, LUO Qiang, ZHANG Liang, JIANG Liang-wei, ZHANG Jia-guo. Centrifugal model tests on shoulder balance weight retaining wall with various motion modes[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(4): 675-682. DOI: 10.11779/CJGE201504013
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不同位移模式下衡重式路肩墙离心模型试验研究  English Version

  • 1. 西南交通大学土木工程学院,四川 成都 610031; 2. 西南交通大学高速铁路线路工程教育部重点实验室,四川 成都 610031

基金项目: 973计划课题（2013CB036204）; 中央高校基本科研业务费专项资金项目（2682013ZT12）
详细信息
    作者简介:

    李浩(1985- ),男,湖北老河口人,博士研究生,主要从事路基和土工技术等方面的研究工作。E-mail: lhwen2008@sina.cn。

    通讯作者:

    罗强

Centrifugal model tests on shoulder balance weight retaining wall with various motion modes

  • 1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. MOE Key Laboratory of High-Speed Railway Engineering, Southwest Jiaotong University, Chengdu 610031, China

摘要

    摘要
  • 摘要: 以某山区公路旧路拓宽改造工程中新建的衡重式路肩挡土墙为原型,设计了墙体在平移（T）、绕墙趾转动（RB）、绕墙顶转动（RT）以及平移与绕墙趾转动复合形式（T+RB）4种位移模式的土工离心模型试验,讨论了挡墙位移模式对墙背土压力和路基填土变形的影响,分析了墙后不同深度土体进入主动状态的进程,试验表明：①位移模式对上墙土压力大小及分布形态基本无影响,但上墙浅层土体在挡墙位移与墙高比值小于0.3%~0.5%时,存在墙-土摩擦引起的土拱效应,使水平土压力系数增大;②由于衡重台的存在,对下墙距衡重台约1/3下墙高度范围的土压力有遮蔽作用,其结果是降低了土压力合力作用点位置;③位移模式对填土沉降有明显影响,在墙体位移最大值相同时,T位移模式的填土沉降明显大于RB和RT位移模式,而RT位移模式,衡重台向下偏转,促进了填土下沉,最终使其填土沉降大于相同位移面积的RB位移模式,也更容易使上墙出现第二破裂面。
    Abstract: Using the new shoulder balance weight retaining wall of an old embankment widening project of a mountainous highway as the prototype, four groups of geotechnical centrifugal model tests are designed based on the wall motions under translation (T), rotating around base (RB), rotation around top (RT) and T+RB modes, the impact of wall motion modes on earth pressure and deformation of the filling is discussed, and the process of soils at various depths entering in to the active earth pressure is analyzed. The results show that: (1) The wall motion modes almost have no influence on the values and distribution of earth pressure on the upper wall, but when the ratio of displacement to height of retaining wall is less than 0.3%~0.5%, the shallow layer fills behind the upper wall have soil arching effect which is caused by wall-soil friction, and the coefficient of horizontal earth pressure increases; (2) The equilibrator has a shadowing effect on the down wall earth pressure, and the influence area is about 1/3 height of the down wall below the equilibrator. The results reduce the position of the acting point of earth pressure resultant force; (3) The motion modes have obvious impact on the fill settlement. When the maximum wall displacements are the same, the fill settlement of the T mode is significantly larger than that of the RB and RT modes. Under the RT mode, although it has the same displacement area as the RT mode, the equilibrator deflects downward. The fill settlement is promoted, leading to that the fill settlement of the RT mode is larger than that of RB mode, and the second fracture surface occurs easier on the upper wall.
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  • [1] COULOMB A C. Essai sur une application des régles de Maximis & Minimis à quelques Problèmes de Statique, relatifs à l'Architecture[J]. Présentés à l'Academie des Sciences par divers Savans, 1776, 7: 343-382. (COULOMB A C. Test on an application of the rules of maximis & minimis some static problems related to architecture[J]. Presented to the Academy of Sciences by Various Savants, 1776, 7: 343-382. (in French))
    [2] RANKINE W J M. On the stability of loose earth[J]. Philosophical Transactions of the Royal Society of London, 1857: 9-27.
    [3] 刘国楠, 胡荣华, 潘效鸿, 等. 衡重式桩板挡墙上墙土压力模型试验研究[J]. 岩土力学, 2011, 32(增刊2): 94-99. (LIU Guo-nan, HU Rong-hua, PAN Xiao-hong, et al. Model tests on earth pressure of upper wall of sheet pile wall with relieving platform[J]. Rock and Soil Mechanics, 2011, 32(S2): 94-99. (in Chinese))
    [4] 刘永春. 衡重式桩板挡墙的模型试验研究[D]. 北京: 中国铁道科学研究院, 2010. (LIU Yong-chun. The model test research on pile-supported relieving retaining wall[D]. Beijing: China Academy of Railway Sciences, 2010. (in Chinese))
    [5] 罗强, 蔡英, 邵启豪. 成都黏土重力式挡土墙的工程试验[J]. 西南交通大学学报, 1995, 30(3): 270-274. (LUO Qing, CAI Ying, SHAO Qi-hao. Experimental study on gravity retaining wall filled with chengdu clay[J]. Journal of Southwest Jiaotong University, 1995, 30(3): 270-274. (in Chinese))
    [6] TERZAGHI K. Large retaining-wall test I. pressure of dry sand[J]. Engineering News-Record, 1900, 112(5): 136-140.
    [7] FANG Y S, ISHIBASH I. Static earth pressures with various wall movements[J]. Journal of Geotechnical Engineering, ASCE, 1986, 112(3): 317-333.
    [8] FANG Y S, CHENG F P, CHEN R T. Earth pressures under general wall movements[J]. Journal of Geotechnical Engineering, ASCE, 1993, 24(2): 113-131.
    [9] 周应英, 任姜龙. 刚性挡土墙主动土压力的试验研[J]. 岩土工程学报, 1990, 12(2): 19-26. (ZHOU Ying-ying, REN Jiang-long. An experimental study on active earth pressure behind rigid retaining wall[J]. Chinese Journal Geotechnical Engineering, 1990, 12(2): 19-26. (in Chinese))
    [10] KOBAKHIDZE A F. Form of the diagram of backfill pressure on a retaining wall[J]. Soil Mechanics and Foundation Engineering, 1977, 14(1): 68-73.
    [11] BANG S. Active earth pressure behind retaining walls[J]. Journal of Geotechnical Engineering, ASCE, 1985, 111(3): 407-412.
    [12] HANDY R L. The arch in soil arching[J]. Journal of Geotechnical Engineering, ASCE, 1985, 111(3): 302-318.
    [13] TSAGARELI Z V. Experimental investigation of the pressure of a loose medium on retaining walls with a vertical back face and horizontal backfill surface[J]. Soil Mechanics and Foundation Engineering, 1965, 2(4): 197-200.
    [14] KHOSRAVI M H, PIPATPONGSA T, TAKEMURA J. Experimental analysis of earth pressure against rigid retaining walls under translation mode[J]. Géotechnique, 2013, 63(12): 1020-1028.
    [15] 徐日庆, 龚慈, 魏纲. 考虑平动位移效应的刚性挡土墙土压力理论[J]. 浙江大学学报(工学版), 2005, 39(1): 119-122. (XU Ri-qing, GONG Ci, WEI Gang. Theory of earth pressure against rigid retaining walls considering translational movement effect[J]. Journal of Zhejiang University (Engineering Science), 2005, 39(1): 119-122. (in Chinese))
    [16] 应宏伟, 蒋波, 谢康和. 考虑土拱效应的挡土墙主动土压力分布[J]. 岩土工程学报, 2007, 29(5): 717-722. (YING Hong-wei, JIANG Bo, XIE Kang-he. Distribution of active pressure against retaining walls considering arching effects[J]. Chinese Journal Geotechnical Engineering, 2007, 29(5): 717-722. (in Chinese))
    [17] 王元战, 李新国, 陈楠楠. 挡土墙主动土压力分布与侧压力系数[J]. 岩土力学, 2005, 26(7): 1019-1022. (WANG Yuan-zhan, LI Xin-guo, CHEN Nan-nan. Active earth pressure on a retaining wall and lateral coefficient of earth pressure[J]. Rock and Soil Mechanics, 2005, 26(7): 1019-1022. (in Chinese))
    [18] 王元战, 李蔚, 黄长虹. 墙体绕基础转动情况下挡土墙主动土压力分布[J]. 岩土工程学报, 2003, 25(2): 208-211. (WANG Yuan-zhan, LI Wei, HUANG Chang-hong. Distribution of active earth pressure with wall movement of rotation about base[J]. Chinese Journal Geotechnical Engineering, 2003, 25(2): 208-211. (in Chinese))
    [19] TERAZGHI K. Theoretical soil mechanics[M]. New York: J Wiley and Sons, Inc, 1943.
    [20] 陆阳, 廖敬梅, 廖军. 高填方路基衡重式挡墙的变形及稳定的现场监测[J]. 中国公路工程, 2006, 31(4): 9-13. (LU Yang, LIAO Jing-mei, LIAO Jun. Field monitoring of a gravity balanced retaining wall[J]. China Railway Science, 2006, 31(4): 9-13. (in Chinese))
    [21] 徐光明, 章为民. 离心模型中的粒径效应和边界效应研究[J]. 岩土工程学报, 1996, 18(3): 80-86. (XU Guang-min, ZHANG Wei-min. Study of the grain size effect and boundary effect in centrifugal model tests[J]. Chinese Journal Geotechnical Engineering, 1996, 18(3): 80-86. (in Chinese))
    [22] 杨俊杰, 柳飞, 丰泽康男, 等. 砂土地基承载力离心模型试验中的粒径效应研究[J]. 岩土工程学报, 2007, 29(4): 477-483. (YANG Jun-jie, LIU Fei, TOYOSAWAY, et al. Particle size effects on bearing capacity of sand ground in centrifugal tests[J]. Chinese Journal Geotechnical Engineering, 2007, 29(4): 477-483. (in Chinese))
    [23] FUGLSANG L D, OVESEN N K. The application of the theory of modelling to centrifuge studies[J]. Centrifuge in Soil Mechanics, 1988: 119-138.
    [24] 杜延龄. 土石坝离心模型试验研究[J]. 水利水电技术, 1997, 28(6): 54-58. (DU Yan-ling. Study on the centrifugal model test for earth-rock dam[J]. Technology of Water Resources and Hydropower, 1997, 28(6): 54-58. (in Chinese))
    [25] 周镜, 李惠康, 郑明成. 衡重式挡墙的模型试验及其土压力计算[J]. 土木工程学报, 1963(10): 58-73. (ZHOU Jing, LI Hui-kang, ZHENG Ming-cheng. Model tests on balance weight retaining wall and calculation of earth pressure[J]. China Civil Engineering Journal, 1963(10): 58-73. (in Chinese))
    [26] 李浩, 罗强, 张良, 等. 衡重式加筋土挡墙土工离心模型试验研究[J]. 岩土工程学报, 2014, 36(3): 458-465. (LI Hao, LUO Qiang, ZHANG Liang, et al. Centrifugal model tests on shoulder balance weight retaining wall with reinforced earth[J]. Chinese Journal Geotechnical Engineering, 2014, 36(3): 458-465. (in Chinese))
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  • 收稿日期:  2014-09-03
  • 发布日期:  2015-05-05

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