Advertisement

Direct and Indirect Local Deformations of Sand in Undrained Cyclic Triaxial Tests by Image Analysis Technique

  • Chuang ZhaoEmail author
  • Junichi Koseki
  • Yukika Miyashita
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

A series of undrained cyclic triaxial liquefaction tests were conducted to observe directly and indirectly the local deformations of sand specimen through a transparent membrane. Black-colored silica sand, mixed in white-colored silica sand, was used for the direct evaluation. Black-colored dots, used for observing the local deformations indirectly, were pasted on membrane with a constant interval of 5 mm. Digital photographs were taken in front of the triaxial cell to evaluate the deformations of sand particles patterns and dots by Particle image Velocimetry method. The results indicated that image analysis is an efficient method for direct and indirect measurements of local deformation. Comparison of direct and indirect evaluations revealed that relative movement between sand particles pattern and an adjacent dot on the membrane had a leap when excess pore water pressure ratio reached unity.

Keywords

Local Strain Axial Strain Cyclic Stress Ratio Specimen Deformation Indirect Evaluation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Yoshida T, Tatsuoka F, Siddiquee MSA, Kamegai Y (1994) Shear banding in sands observed in plane strain compression. In: Localisation and bifurcation theory for soils and rocks, p 165–179Google Scholar
  2. Harris WW, Viggiani G, Mooney MA, Finno RJ (1995) Use of stereophotogrammetry to analyze the development of shear bands in sand. Geotech Test J 18(4):405–420. doi: 10.1520/GTJ11016J
  3. Desrues J, Chambon R, Mokni M, Mazerolle F (1996) Void ratio evolution inside shear bands in triaxial sand specimens studied by computed tomography. Geotechnique 46(3):529–546. doi: 10.1680/geot.1996.46.3.529
  4. Rechenmacher AL (2003) Image based experimental soil mechanics. In: Proceeding of the 1st Japan-US workshop on testing, modelling and simulation, No. 156, pp 653–663Google Scholar
  5. White DJ, Take WA, Bolton MD (2003) Soil deformation measurement using particle image velocimetry (PIV) and photogrammetry. Geotechnique 53(7):619–631. doi: 10.1680/geot.53.7.619.37383 CrossRefGoogle Scholar
  6. Mokni M, Desrues J (1998) Strain localization measurements in undrained plane strain biaxial tests on Hostun RF sand. Mech Cohesive Frictional Mater 4:419–441. doi: 10.1002/(SICI)1099-1484(199907)4:4<419:AID-CFM70>3.0.CO;2-1 CrossRefGoogle Scholar
  7. Sadrekarimi A, Olson SM (2010) Shear band formation observed in ring shear tests on sandy soils. J Geotech Geoenvironmental Eng 136(2):366–375. doi: 10.1061/(ASCE)GT.1943-5606.0000220 CrossRefGoogle Scholar
  8. Kiyota T, Sato T, Koseki J, Abadimarand M (2008) Behavior of liquefied sands under extremely large strain levels in cyclic torsional shear tests. Soils Found 48(5):727–739 http://doi.org/10.3208/sandf.48.727 CrossRefGoogle Scholar
  9. Chiaro G, Kiyota T, Koseki J (2013) Strain localization characteristics of loose saturated Toyoura sand in undrained cyclic torsional shear tests with initial static shear. Soils Found 53(1):23–34. doi: 10.1016/j.sandf.2012.07.016 CrossRefGoogle Scholar
  10. Fauzi UJ, Koseki J (2014) Local deformation properties of segregated sand specimen in hollow cylindrical torsional shear tests. Bulletin of ERS, No. 47:27–36Google Scholar
  11. Hoshino R, Miyashita Y, Sato T, Koseki J (2015) Local deformation properties of sand specimen in triaxial liquefaction tests evaluated by direct and indirect observations. Bulletin of ERS, No. 48:63–71Google Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Department of Civil EngineeringUniversity of TokyoTokyoJapan
  2. 2.Institute of Industrial ScienceUniversity of TokyoTokyoJapan

Personalised recommendations