Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 41 Issue 1
Turn off MathJax
Article Contents
Abstract
References
CHEN Rong, FU Sheng-nan, HAO Dong-xue, SHI Dan-da. Scale effects of uplift capacity of circular anchors in dense sand[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(1): 78-85. DOI: 10.11779/CJGE201901008
Citation: CHEN Rong, FU Sheng-nan, HAO Dong-xue, SHI Dan-da. Scale effects of uplift capacity of circular anchors in dense sand[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(1): 78-85. DOI: 10.11779/CJGE201901008
shu

Scale effects of uplift capacity of circular anchors in dense sand

  • 1.School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China;
    2.Northeast Electric Power Design Institute Co., Ltd.of China Power Engineering Consulting, Changchun 130021, China;
    3.College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

More Information
  • Received Date: January 06, 2018
  • Published Date: January 24, 2019
    Graphical Abstract
    • Abstract
  • The scale effects of uplift capacity of circular anchors in dense sand are studied by means of the model tests and finite element method. The pullout tests on the circular anchors with the diameters of 20, 50 and 400 mm as well as the embedment ratios of 2~6 are carried out, where the curves of uplift resistance and displacement and ultimate uplift capacity are obtained. It is seen from the test results that the breakout factor decreases with the increase in anchor diameter under the same embedment ratio, and the phenomenon is more obvious with larger embedment ratio. Numerical analysis for the pullout tests is performed based on the modified Mohr-Coulomb model which can reflect the strain softening of dense sand, and the results are compared with those based on the elastic-perfectly plastic Mohr-Coulomb model. It is shown that the numerical results based on elastic-perfectly plastic model overestimate the uplift capacity of anchors remarkably, while the simulations based on the modified Mohr-Coulomb model can reveal the process of mobilizing soil strength to the peak value, and thus the numerical results agree well with the test ones. The reasons causing the scale effects are the soil strength dependent on stress level and the progressive failure during pullout. The process that the soils surrounding the anchors reach failure step by step becomes more and more obvious with the increase of anchor diameter when the embedment ratio is relatively large.
    • FullText(HTML)
    • References (23)
  • [1]
    MURRAY E J, GEDDES J D.Uplift of anchor plates in sand[J]. Journal of Geotechnical Engineering, 1987, 113(3): 202-215.
    [2]
    GHALY A, HANNA A, HANNA M.Uplift behaviour of screw anchors in sand: І dry sand[J]. Journal of Geotehcnical Engineering, 1991, 117(5): 773-793.
    [3]
    LIU J Y, LIU M L, ZHU Z D.Sand deformation around an uplift plate anchor[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2012, 138(6): 728-737.
    [4]
    OVESEN N K.Centrifuge tests of uplift capacity of anchor[C]// Proceedings of the 10th International Conference on Soil Mechanics and Foundation Engineering. Stockholm, 1981: 717-722.
    [5]
    TAGAYA K, SCOTT R F, ABOSHI H.Pullout resistance of buried anchor in sand[J]. Soils and Foundations, 1988, 28(3): 114-130.
    [6]
    DICKIN E A.Uplift beahvior of horizontal anchor plates in sand[J]. Journal of Geotechnical Engineering, ASCE, 1988, 114(11): 1300-1317.
    [7]
    SAKAI T, TANAKA T.Progressive failure and scale effect of trap-door problems with granular materials[J]. Japanese Society of Soil Mechanics and Foundation Engineering, 1993, 33(1): 11-222.
    [8]
    SAKAI T, TANAKA T.Scale effect of a shallow circular anchor in dense sand[J]. Soils and Foundations, 1998, 38(2): 93-99.
    [9]
    SAKAI T, TANAKA T.Experimental and numerical study of uplift behavior of shallow circular anchor in two-layered sand[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2007, 133: 469-477.
    [10]
    GHALY A, HANNA A.Ultimate pullout resistance of single vertical anchors[J]. Canadian Geotechnical Journal, 1994, 31(5): 661-672.
    [11]
    郝冬雪, 符胜男, 陈榕. 砂土中锚板拉拔模型试验及其抗拔力计算[J]. 岩土工程学报, 2015, 37(11): 2101-2106.
    (HAO Dong-xue, FU Sheng-nan, CHEN Rong, et al.Experimental investigation of uplift behavior of anchors and estimation of uplift capacity in sands[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(11): 2101-2106. (in Chinese))
    [12]
    ROWE R K, DAVIS E H.The behaviour of anchor plates in sand[J]. Géotechnique, 1982, 32(1): 25-41.
    [13]
    TAGAYA K, TANAKA A, ABOSHI H.Application of finite element method to pullout resistance of buried anchor[J]. Soils and Foundations, 1983, 23(3): 91-104.
    [14]
    BHATTACHARYA P, KUMAR J.Uplift capacity of anchors in layered sand using finite-element limit analysis: formulation and results[J]. International Journal of Geomechanics, ASCE, 2016, 16(3): 1532-3641.
    [15]
    MERIFIELD R S, SLOAN S W.The ultimate pullout capacity of anchors in frictional soils[J]. Canadian Geotechnical Journal, 2006, 43: 852-868.
    [16]
    KUMAR J.Uplift response of strip anchors in sand using FEM[J]. Irinian Journal of Science and Technology, 2006, 30(4): 475-486.
    [17]
    KHATRI V N, KUMAR J.Effect of anchor on pullout capacity of strip anchors in sand[J]. Canadian Geotechnical Journal, 2011, 48: 511-547.
    [18]
    TATSUOKA F, GOTO S, SAKAMOTO M.Effects of some factors on strength and deformation characteristics of sand at low pressures[J]. Soils and Foundations, 1986, 26(1): 105-114.
    [19]
    ALSHIBLI K A, BATISTE S N, STURE S.Strain localization in sand: plane strain versus triaxial compression[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2003, 129(6): 483-494.
    [20]
    ANDERSEN K H, SCHJETNE K.Database of friction angles of sand and consolidation characteristics of sand, silt, and clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2013, 139(7): 1140-1155.
    [21]
    BOLTON M D.Strength and dilatancy of sands[J]. Géotechnique, 1986, 36(1): 65-78.
    [22]
    HSU S T, LIAO H J.Uplift behaviour of cylindrical anchors in sand[J]. Canadian Geotechnical Journal, 1998, 34: 70-80.
    [23]
    JAKY J.Pressure in silos[C]// Proceedings of the 2nd International Conference on Soil Mechanics and Foundation Engineering. Rotterdam, 1948: 103-107.
    • Related Articles
  • Supplements (0)

Catalog

    Get Citation
    PDF
    XML
    Article views (289) PDF downloads (209) Cited by()
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return