A new challenge on soil mechanics based on the use of two different X-ray CT

• Project/Area Number: 26630221
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Geotechnical engineering
• Research Institution: Kumamoto University
• Principal Investigator: OTANI Jun 熊本大学, 自然科学研究科, 教授 (30203821)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 土質力学 / X線CT / ミクロとマクロ現象 / 矢板の鉛直支持力 / 土中内部の挙動 / Ｘ線ＣＴ / 一軸圧縮

Outline of Final Research Achievements

A localized behavior such as deformation and strength properties of soils was evaluated using two different X-ray CT which are industrial and micro-focus types depending on the resolution and the size of soil specimen. In this study, the model test on the vertically loaded sheet-pile was examined and the soil behavior around sheet-pile was evaluated by using two X-ray CTs. One of the mail objectives was to use two different X-ray CT scanners and to investigate both micro and macro behavior of soils.

Research Products

• [Journal Article] Effect of shaft rotation of driven spiral piles on vertical bearing capacity (2016)
  • Author(s): Takahiro Sato, Jun Otani, Bastien Chevalier and Tugba Eskisa
  • Journal Title: Japanese Geotechnical Society Special Publication Volume: 2 Issue: 36 Pages: 1304-1309
  • DOI: 10.3208/jgssp.JPN-110
  • NAID: 130005124043
  • ISSN: 2188-8027
  • Peer Reviewed / Open Access
• [Journal Article] スパイラルパイル施工時の回転条件が鉛直支持力に与える影響に関する基礎的検討 (2015)
  • Author(s): 佐藤宇紘，原田剛男，岩佐直人，林 悟史，大谷 順
  • Journal Title: 地盤工学ジャーナル Volume: 10 Pages: 253-265
  • NAID: 130005086561
  • Peer Reviewed / Open Access
• [Journal Article] Localised deformation in a wide-grained sand under triaxial compressionrevealed by X-ray tomography and digital image correlation (2015)
  • Author(s): Daiki Takano, Nicolas Lenoir, Jun Otaniand Stephen A. Hall
  • Journal Title: Soils and Foundations Volume: 55 Pages: 906-915
  • Peer Reviewed / Open Access
• [Journal Article] Observation of ground displacement field around the driven open-section piles (2015)
  • Author(s): T. SATO, K. ONDA, and J. OTANI
  • Journal Title: Proc. of 2nd International Conference on Tomography of Materials and Structures Volume: 1 Pages: 537-541
  • Peer Reviewed
• [Journal Article] A study on characteristics evaluation to control quality of asphalt mixture using X-ray CT (2014)
  • Author(s): Satoshi Taniguchi, Jun Otani & Masayuki Kumagai
  • Journal Title: Road Materials and Pavement Design Volume: 15-4 Issue: 4 Pages: 892-910
  • DOI: 10.1080/14680629.2014.944204
  • Peer Reviewed / Open Access
• [Journal Article] Visualization of grain crushing using micro-focused X-ray CT scanning (2014)
  • Author(s): W.M.Yan, T.Shi, T.Mukunoki, T.Sato and J.Otani
  • Journal Title: Proceedings of Geomecanics from Micro to Macro Volume: 1 Pages: 1131-1135
  • Peer Reviewed
• [Journal Article] Experimental and numerical simulation of shear behavior on sand and tire chips (2014)
  • Author(s): D.Takano, B.Chevalier and J.Otani
  • Journal Title: Proceeding of Computer Methods and Recent Advances in Geomechanics, Volume: 1 Pages: 1545-1550
  • Peer Reviewed