Physical modelling of pipe piles under oblique pullout loads using transparent soil and particle image velocimetry

详细信息    查看全文

• 作者：Zhao-hu Cao 曹兆藿/a> ; Han-long Liu 刘汉鼿/a>…
• 刊名：Journal of Central South University
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：22
• 期：11
• 页码：4329-4336
• 全文大小：2,113 KB
• 参考文献：[1]CHEN J Y, GILBERT R B, PUSKAR F J, VERRET S. Case study of offshore pile system failure in hurricane ike [J]. Journal of Geotechnical and Geoenvironmental Engineering, 2013, 139(10): 1699–1708.CrossRef
  [2]KRISHNA B, PATRA N R. Effect of compressive load on oblique pull-out capacity of model piles in sand [J]. Geotechnical and Geological Engineering, 2006, 24(3): 593–614.CrossRef
  [3]PATRA N R, PISE P J. Model pile groups under oblique pullout loads — An investigation [J]. Geotechnical and Geological Engineering, 2006, 24(2): 265–282.CrossRef
  [4]JOHNSON K, LEMCKE P, KARUNASENA W, SIVAKUGAN N. Modelling the load–deformation response of deep foundations under oblique loading [J]. Environmental Modelling & Software, 2006, 21(9): 1375–1380.CrossRef
  [5]WHITE D J, BOLTON M D. Displacement and strain paths during plane-strain model pile installation in sand [J]. Geotechnique, 2004, 54(6): 375–397.CrossRef
  [6]LIU J, YUAN B X, MAI V T, DIMAANO R. Optical measurement of sand deformation around a laterally loaded pile [J]. Journal of Testing and Evaluation, 2011, 39(5): 1–6.CrossRef
  [7]YUAN Bing-xiang, CHEN Wen-wu, JIANG Tong, WANG Yi-xian, CHEN Ke-ping. Stereo particle image velocimetry measurement of 3D soil deformation around laterally loaded pile in sand [J]. Journal of Central South University, 2013, 20(3): 791–798.CrossRef
  [8]ISKANDER M, SADEK S, LIU J. Optical measurement of deformation using transparent silica gel to model sand [J]. International Journal of Physical Modelling in Geotechnics, 2002, 2(4): 13–26.CrossRef
  [9]ISKNADER M, LIU J, SADEK S. Transparent amorphous silica to model clay [J]. Journal of Geotechnical and Geoenvironmental Engineering, 2002, 128(3): 262–273.CrossRef
  [10]LEHANE B M, GILL D R. Displacement fields induced by penetrometer installation in an artificial soil [J]. International Journal of Physical Modelling in Geotechnics, 2004, 4(1): 25–36.
  [11]NI Q, HIRD C C, GUYMER I. Physical modelling of pile penetration in clay using transparent soil and particle image velocimetry [J]. Geotechnique, 2010, 60(2): 121–132.CrossRef
  [12]ZHAO H, GE L, LUNA R. Low viscosity pore fluid to manufacture transparent soil [J]. Geotechnical Testing Journal, 2010, 33(6): 1–6.MATH
  [13]KONG Gang-qiang, LIU Lu, LIU Han-long, ZHOU Hang. Triaxial tests on deformation characteristics of transparent glass sand [J]. Chinese Journal of Geotechnical Engineering, 2013, 35(6): 1140–1146. (in Chinese)
  [14]WELKER A L, BOWDERS J J, GILBERT R B. Applied research using a transparent material with hydraulic properties similar to soil [J]. Geotechnical Testing Journal, 1999, 22(3): 266–270.CrossRef
  [15]SADEK S, ISKANDER M, LIU J. Accuracy of digital image correlation for measuring deformation in transparent media [J]. Journal of Computing in Civil Engineering, 2003, 17(2): 88–96.CrossRef
  [16]LIU J, ISKANDER M. Adaptive cross correlation for imaging displacements in soils [J]. Journal of Computing in Civil Engineering, 2004, 18(1): 46–57.CrossRef
  [17]WHITE D J, TAKE W A, BOLTON M D. Soil deformation measurement using particle image velocimetry (PIV) and photogrammetry [J]. Geotechnique, 2003, 53(7): 619–631.CrossRef
  [18]AHMED M, ISKANDER M. Analysis of tunneling-induced ground movements using transparent soil models [J]. Journal of Geotechnical and Geoenvironmental Engineering, 2011, 137(5): 525–535.CrossRef
  [19]ZHOU Jian, ZHANG Gang, ZENG Qing-you. Model tests and PFC2D numerical analysis of active laterally loaded piles [J]. Chinese Journal of Geotechnical Engineering, 2007, 29(5): 650–656. (in Chinese)
  
• 作者单位：Zhao-hu Cao 曹兆虎 (1)
  Han-long Liu 刘汉龙 (1) (2)
  Gang-qiang Kong 孔纲强 (1)
  Hang Zhou 周航 (1)
  
  1. College of Civil and Transportation Engineering, Hohai University, Nanjing, 210098, China
  2. Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing, 400045, China
  
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Metallic Materials
  Chinese Library of Science
  
• 出版者：Central South University, co-published with Springer
• ISSN：2227-5223

文摘

A small-scale physical modelling method was developed to investigate the pile bearing capacity and the soil displacement around the pile using transparent soil and particle image velocimetry (PIV) technique. Transparent sand was made of baked quartz and a pore fluid with a matching refractive index. The physical modelling system consists of a loading system, a laser light, a CCD camera, an optical platform and a computer for image analyzing. A distinctive laser speckle was generated by the interaction between the laser light and transparent soil. Two laser speckle images before and after deformation were used to calculate the soil displacement field using PIV. Two pipe piles with different diameters under oblique pullout loads at angles of 0°, 30°, 45°, 60° and 90° were used in tests. The load-displacement response, oblique pullout ultimate resistances and soil displacement fields were then studied. The test results show that the developed physical modelling method and transparent soil are suitable for pile-soil interaction problems. The soil displacements around the pipe piles will improve the understanding on the capacity of pipe piles under oblique pullout loads.