Stress-deformation mechanism of ground during urban tunnel excavation : Model tests and Numerical simulation

• Project/Area Number: 21760372
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Geotechnical engineering
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: HOSSAIN Md.Shahin Nagoya Institute of Technology, 大学院・工学研究科, 准教授 (00516495)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: トンネル掘削 / 近接施工 / 有限要素法 / モデル実験 / 群杭基礎

Research Abstract

For the development of urban areas several types of underground structures are constructed by means of tunneling. However, tunnel excavations inevitably cause ground deformations and may affect existing structures near the tunnel. Therefore, it is required to provide reliable forecasts of the inevitable settlement associated with the tunnel excavation. In tunnel design usually the influence of excavation patterns and the interaction effect of ground and existing structure are not taken into account. This research provides a guideline to deal with the soil-structure interaction effect in using underground space, which is a common problem in urban area. In many cities some of the tunnels are located less than 1m gap in some sections and some are parallel to others. In this research the effect of adjacent tunnels has been investigated with laboratory model tests and numerical simulations.

Research Products

• [Journal Article] Behavior of ground and response of existing foundation due to tunneling (2011)
  • Author(s): Shahin, H.M., Nakai, T., Zhang, F., Kikumoto, M., Nakahara, E.
  • Journal Title: Soils and Foundation vol.51, no.3,in press
  • Peer Reviewed
• [Journal Article] Behavior of ground and response of existing foundation due to tunneling (2011)
  • Author(s): Shahin, H.M., Nakai, T., Zhang, F., Kikumoto, M., Nakahara, E.
  • Journal Title: Soils and Foundation Volume: vol.51, no.3(登載決定済)
  • Peer Reviewed
• [Presentation] トンネル掘削が上方の既設直交トンネルに及ぼす影響-モデル実験と数値解析による検討- (2010)
  • Author(s): 戸田和秀, 中井照夫, 張鋒, H.M.Shahin, 菊本統, 杉浦知治
  • Organizer: 第45回地盤工学研究発表会
  • Year and Date: 2010-08-20
• [Presentation] トンネル掘削の近接群杭構造物への影響 (2009)
  • Author(s): 菊本統, H.M.Shahin, 中井照夫, 永田政司, 戸田和秀
  • Organizer: 第54回地盤工学シンポジウム論文集
  • Year and Date: 2009-11-20
• [Presentation] 半円形断面トンネルにおけるロックボルト補強メカニズム～2次元モデル実験と数値解析による検討～ (2009)
  • Author(s): 戸田和秀, 中井照夫, 張鋒, H.M.Shahin, 菊本統, 永田政司, 中澤修
  • Organizer: 第44回地盤工学研究発表会
  • Year and Date: 2009-08-19
• [Presentation] 円形トンネル掘削時の近接杭基礎構造物への影響 (2009)
  • Author(s): 永田政司, 中井照夫, 張鋒, H.M.Shahin, 菊本統, 戸田和秀, 中澤修
  • Organizer: 第44回地盤工学研究発表会
  • Year and Date: 2009-08-19
• [Presentation] 半円形断面トンネルにおけるロックボルト補強メカニズム～2次元モデル実験と数値解析による検討～ (2009)
  • Author(s): 戸田和秀, 中井照夫, 張鋒, H.M.Shahin, 菊本統, 永田政司, 中澤修一
  • Organizer: 第44回地盤工学研究発表会
  • Place of Presentation: Yokohama
  • Year and Date: 2009-08-19
• [Presentation] 円形トンネル掘削時の近接杭基礎構造物への影響 (2009)
  • Author(s): 永田政司, 中井照夫, 張鋒, H.M.Shahin, 菊本統, 戸田和秀, 中澤修一
  • Organizer: 第44回地盤工学研究発表会
  • Place of Presentation: Yokohama
  • Year and Date: 2009-08-19
• [Remarks]
  • URL: http://www.cm.nitech.ac.jp/jiban/english/Staff/Shahin/index.html
• [Remarks]
  • URL: http://www.cm.nitech.ac.jp/jiban/english/Staff/Shahin/index.html
• [Remarks]
  • URL: http://www.cm.nitech.ac.jp/jiban/english/Staff/Shahin/index.html