• Scopus数据库收录期刊
  • 中国科技核心期刊
  • 全国中文核心期刊
  • 美国工程索引(EI)收录期刊

砂土中吸力式沉箱基础抗拔承载特性试验研究

黎冰, 郑翔, 高玉峰, 邱月, 沙成明

黎冰, 郑翔, 高玉峰, 邱月, 沙成明. 砂土中吸力式沉箱基础抗拔承载特性试验研究[J]. 岩土工程学报, 2013, 35(5): 902-907.
引用本文: 黎冰, 郑翔, 高玉峰, 邱月, 沙成明. 砂土中吸力式沉箱基础抗拔承载特性试验研究[J]. 岩土工程学报, 2013, 35(5): 902-907.
LI Bing, ZHENG Xiang, GAO Yu-feng, QIU Yue, SHA Cheng-ming. Model tests on pull-out capacity of suction caisson foundation in sand[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(5): 902-907.
Citation: LI Bing, ZHENG Xiang, GAO Yu-feng, QIU Yue, SHA Cheng-ming. Model tests on pull-out capacity of suction caisson foundation in sand[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(5): 902-907.

砂土中吸力式沉箱基础抗拔承载特性试验研究  English Version

基金项目: 国家自然科学基金项目(50909020,51078082);海岸灾害及防护教育部重点实验室开放研究基金资助项目
详细信息
    作者简介:

    黎 冰(1981- ),男,安徽芜湖人,博士,讲师,主要从事土力学与岩土工程方面的教学与科研工作。E-mail: lbershui@seu.edu.cn。

  • 中图分类号: TU47

Model tests on pull-out capacity of suction caisson foundation in sand

  • 摘要: 通过一系列的室内模型试验研究了砂土中吸力式沉箱基础的抗拔承载特性,着重分析了沉箱的长径比、荷载作用角度和荷载作用点位置的影响。试验中考虑了3个长径比,5个荷载作用角度和5个荷载作用点位置。试验结果表明,不同工况条件下吸力式沉箱基础在被拔出前所表现出来的荷载-位移特性各不相同。增大沉箱的长径比,可以显著提高吸力式沉箱基础的抗拔能力,但长径比的改变不影响吸力式沉箱基础的位移特征。荷载作用方向越接近于水平方向,吸力式沉箱基础的抗拔能力越强。当吸力式沉箱基础承受竖向上拔荷载作用时,荷载作用点位置的变化对其承载力的影响可以忽略;除荷载作用角度为90000b0;外,荷载作用于沉箱高度的2/3和3/4处时,基础的抗拔能力最强。
    Abstract: A series of model tests are carried out to investigate the pull-out behavior of a suction caisson foundation in sand, and the effort is focused on the effect of aspect ratio, loading inclination angle and load attachment point. Three different aspect ratios, five different loading inclination angles and five different load attachment points are considered in the model tests. The test results show that the characteristics of load-displacement of the suction caisson foundation before pull-out are different in each case. The pull-out capacity can be improved significantly by increasing the aspect ratio. However, changing the aspect ratio does not affect the deformation characteristics of the suction caisson. The more nearly horizontal the loading direction, the greater the pull-out capacity of the suction caisson foundation. The influence of the loading position on the pull-out capacity of the suction caisson foundation can be ignored while the loading inclination angle equals 90000b0;, otherwise the load should be attached on the suction caisson height of 2/3 and 3/4 to obtain greater pull-out capacity.
  • [1] LUKE A M, RAUCH A F, OLSON R E,et al. Components of suction caisson capacity measured in axial pullout tests[J]. Ocean Engineering, 2005,32:878-891.
    [2] RAO S N, LATHA K H, PALLAVI B,et al. Studies on pullout capacity of anchors in marine clays for mooring systems [J]. Applied Ocean Research, 2006,28:103-111.
    [3] BYRNE B W, HOULSBY G T. Experimental investigations of the response of suction caissons to transient vertical loading[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2002, 128(11):926-939.
    [4] EI-SHERBINY R M. Performance of suction caisson anchors in normally consolidated clay[D]. Austin: The University of Texas at Austin, 2005.
    [5] CLUKEY E C, AUBENY C P, MURFF J D. Comparison of analytical and centrifuge model tests for suction caissons subjected to combined loads[J]. Journal of Offshore Mechanics and Arctic Engineering, 2004,126(4):364-367.
    [6] BYRNE B W, HOULSBY G T. Experimental investigations of the response of suction caissons to transient combined loading[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2004, 130(3):240-253.
    [7] 施晓春),(徐日庆),(龚晓南),等. 桶形基础单桶水平承载力的试验研究[J]. (岩土工程学报), 1999,21(6):723-726. (SHI Xiao-chun, XU Ri-qing, GONG Xiao-nan, et al. Experimental study on horizontal bearing capacity of single bucket foundation[J]. Chinese Journal of Geotechnical Engineering,1999,21(6): 723-726. (in Chinese)
    [8] 刘振纹),(王建华),(秦崇仁),等. 负压桶形基础地基水平承载力研究[J]. (岩土工程学报), 2000,22(6):691-695. (LIU Zhen-wen, WANG Jian-hua, QIN Chong-ren, et al. Research on the horizontal bearing capacity of bucket foundations [J]. Chinese Journal of Geotechnical Engineering,2000,22(6): 691-695. (in Chinese)
    [9] 徐 冰. 倾斜荷载作用下吸力式沉箱抗拔性能试验研究[D]. 大连: 大连理工大学, 2008.((XU Bing. The small scale model test study on inclined load capacity of suction caisson [D]. Dalian
    [10] ISKANDER M, El-GHARBAWY S, OLSON R. Performance of suction caissons in sand and clay [J]. Canadian Geotechnical Journal, 2002,39:576-584.
    [11] BANG S, JONES K, KIM Y S,et al. Vertical pullout capacity of embedded suction anchors in sand [C]// Proceedings of the Sixteenth International Offshore and Polar Engineering Conference, San Francisco. 2006: 469-474.
    [12] BANG S, JONES K D, KIM K O,et al. Inclined loading capacity of suction piles in sand [J]. Ocean Engineering, 2011,38(7):915-924.
    [13] 鲁晓兵),(王义华),(张建红),等. 水平动载下桶形基础变形的离心机实验研究[J]. (岩土工程学报), 2005,27(7):789-791. (LU Xiao-bing, WANG Yi-hua, ZHANG Jian-hong, et al. Centrifuge test on the deformation of bucket foundation under horizontal vibration load[J]. Chinese Journal of Geotechnical Engineering,2005,27(7): 789-791. (in Chinese)
    [14] 张金来),(鲁晓兵),(王淑云),等. 桶形基础极限承载力特性研究[J]. (岩石力学与工程学报), 2005,24(7):1169-1172. (ZHANG Jin-lai, LU Xiao-bing, WANG Shu-yun, et al. The characteristics of the bearing capacity of bucket foundation[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(7): 1167-1172. (in Chinese)
    [15] DENG W, CARTER J P. Inclined uplift capacity of suction caissons in sand[C]// Offshore Technology Conference, Houston. 2000: 500-506.
    [16] JONESA K D, BANG S, CHO Y. Pullout capacity of embedded suction anchors in sand[J]. Ocean Engineering, 2007,34:2107-2114.
    [17] HOUSE A R. Suction caisson foundations for buoyant offshore facilities[D]. Perth: University of Western Australia, 2002.
    [18] CHEN W, RANDOLPH M F. Radial stress changes around caissons installed in clay by jacking and by suction[C]// Proceedings of 14th International Offshore and Polar Engineering Conference, Toulon. 2004: 493-499.
    [19] 黎 冰,(高玉峰),邱 月,等. 一种用于模型试验中吸力式沉箱沉贯垂直度的控制装置: 中国, 201210106455. 2[P]. 2012-08-15. (LI Bing, GAO Yu-feng, QIU Yue, et al. A device for controlling the vertical penetration of suction caisson in model test:China, 201210106455.2[P]. 2012-08-15. (in Chinese)
计量
  • 文章访问数: 
  • HTML全文浏览量:  0
  • PDF下载量: 
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-07-09
  • 发布日期:  2013-05-26

目录

    /

    返回文章
    返回