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
  • [31] Comparison of bearing capacity characteristics of sand and gravel compaction pile treated ground
    Byoung-Il Kim
    Seung-Hyun Lee
    KSCE Journal of Civil Engineering, 2005, 9 (3) : 197 - 203
  • [32] Field load tests on model pile group
    Lee, YN
    Park, YH
    Lee, SH
    PROCEEDINGS OF THE FIFTEENTH (2005) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2, 2005, : 384 - 391
  • [33] The dilatant behaviour of sand-pile interface subjected to loading and stress relief
    Peng, S. Y.
    Ng, C. W. W.
    Zheng, G.
    ACTA GEOTECHNICA, 2014, 9 (03) : 425 - 437
  • [34] Comparative model tests on bearing capacities of tapered pile and equal section pile
    Gu H.
    Kong G.
    Che P.
    Ren L.
    Peng H.
    Kong, Gangqiang (gqkong1@163.com), 1600, Central South University of Technology (48): : 1600 - 1606
  • [35] Effect of pile inclination on the lateral deformation behaviour of pipe piles in calcareous sand
    Qin, Yue
    Xu, Dongsheng
    Fan, Xiaochun
    MARINE GEORESOURCES & GEOTECHNOLOGY, 2022, 40 (05) : 589 - 599
  • [36] Field tests using an instrumented model pipe pile in sand
    Igoe, D.
    Gavin, K.
    O'Kelly, B.
    PHYSICAL MODELLING IN GEOTECHNICS, VOLS. 1 AND 2, 2010, : 775 - 780
  • [37] Plate loading tests and bearing capacity characteristics of grouted screw pile method
    Watanabe N.
    Hazarika H.
    Okuno M.
    Inoue T.
    Katou T.
    Zairyo/Journal of the Society of Materials Science, Japan, 2011, 60 (12) : 1138 - 1143
  • [38] Anisotropy in bearing capacity-lateral deformation behavior of sand ground
    Kawamura, S
    Miura, S
    Yokohama, S
    DEFORMATION CHARACTERISTICS OF GEOMATERIALS, 2003, : 1303 - 1310
  • [39] Flexible Pile Group Interaction Factors under Arbitrary Lateral Loading in Sand
    Marjanovic, Milos
    Vukicevic, Mirjana
    Koenig, Diethard
    JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2020, 8 (10) : 1 - 21
  • [40] Model tests on bearing capacity of footing on sand slopes
    Zhu, D.-Y., 1600, Chinese Society of Civil Engineering (36):
12345