Model Loading Tests on Bearing Behaviour of a Group Pile and Ground Deformation in Sand

被引：0
|
作者：
Aoyama, S. [1 ]
Liu, B. [1 ]
Danardi, L. [1 ]
Mao, W. [1 ]
Goto, S. [1 ]
Towhata, I. [1 ]
机构：
[1] Univ Tokyo, Civil Engn Dept, Tokyo, Japan
来源：
GEOTECHNICAL ENGINEERING | 2014年 / 45卷 / 02期
关键词：
Group Pile; Model test; Vertical Load; Visualizing;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Model loading tests were conducted in dry sand to investigate the mechanism of pile-soil-pile interaction under group pile loading. The group pile was constituted of 9 (3x3) closed-end piles when the spacing between pile centres were 2.5 times of the pile diameter (2.5D) and 5.0 times (5.0D). The results showed that (1) yielding settlement of 2.5D group pile was larger than that of 5D group pile, (2) the subgrade reaction of the 2.5D group pile became less than that of the 5.0D group pile or a single pile when the load-settlement relationship was linear; (3) subgrade reactions of 2.5D and 5.0D group pile became similar after yielding of bearing load. Ground deformation was studied using with visualising tests and PIV analysis. It was shown that the ground deformation occurred as a block in case of 2.5D group pile and the deformed area expanded deeper as compared with 5.0D group pile. This mode of ground deformation reduced the subgrade reaction in 2.5D group pile.
引用
收藏
页码：96 / 105
页数：10
相关论文
共 50 条
  • [21] Dynamic behaviour of model pile in saturated sloping ground during shaking table tests
    Chen, C. H.
    Ueng, T. S.
    PHYSICAL MODELLING IN GEOTECHNICS, VOL 2, 2018, : 873 - 878
  • [22] Vertical bearing performance of a concrete-filled steel tubular single pile and pile group in sand-rock composite ground
    Hu, Zhongbo
    Zhang, Shishu
    Wang, Qinke
    Zhao, Guoliang
    Cheng, Zhan
    APPLIED OCEAN RESEARCH, 2025, 154
  • [23] An experimental study of rough single pile and pile group under uplift loading in sand
    Emirler, Buse
    Tolun, Mustafa
    Yildiz, Abdulazim
    EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING, 2021, 25 (03) : 557 - 574
  • [24] The dilatant behaviour of sand–pile interface subjected to loading and stress relief
    S. Y. Peng
    C. W. W. Ng
    G. Zheng
    Acta Geotechnica, 2014, 9 : 425 - 437
  • [25] Model tests on vertical bearing behavior of single pile under combined loads in sandy ground
    Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai
    200092, China
    不详
    200092, China
    不详
    450052, China
    Tongji Daxue Xuebao, 10 (1517-1525):
  • [26] Model tests on bearing behavior of pile groups in collapsible loess ground under water immersion
    Zhang Y.-J.
    Wang X.
    Liang Q.-G.
    Jiang D.-J.
    Li J.-D.
    Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering, 2021, 43 : 219 - 223
  • [27] Viscous behaviour of air-dried sand in model loading tests of strip footing
    Hirakawa, D.
    Tatsuoka, F.
    Siddiquee, M. S. A.
    PROCEEDINGS OF THE 16TH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND GEOTECHNICAL ENGINEERING, VOLS 1-5: GEOTECHNOLOGY IN HARMONY WITH THE GLOBAL ENVIRONMENT, 2005, : 379 - 382
  • [28] Cyclic loading effect on batter anchored pile group in dry sand
    Ahmed, Ali H.
    Abbas, Hassan O.
    Ibrahim, Azhar S.
    GEOTECHNICAL AND GEOLOGICAL ENGINEERING, 2023, 41 (05) : 2787 - 2796
  • [29] Cyclic loading effect on batter anchored pile group in dry sand
    Ali H. Ahmed
    Hassan O. Abbas
    Azhar S. Ibrahim
    Geotechnical and Geological Engineering, 2023, 41 : 2787 - 2796
  • [30] Tests on thermal and rheological responses on bearing characteristics of pile in frozen ground
    Shi, Rui
    Wen, Zhi
    Wang, Xu
    Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology, 2024, 56 (07): : 132 - 141
12345