RC平板形セグメントのセグメント幅に関する研究

• 石田 智朗

  日本国土開発株式会社技術本部土木部

• 中筋 智之

  早稲田大学大学院理工学研究科

• 奥津 大

  早稲田大学大学院理工学研究科

• 村上 博智

  早稲田大学理工学部土木工学科

• 小泉 淳

  早稲田大学理工学部土木工学科

書誌事項

タイトル別名

• On the bending behaviour of the RC-flat type segment with large width taking into account of the splice effect

抄録

Recently, The width of the segment used the shield tunneling method tends to become wider. When the segment rings are jointed staggeringly, the shearing force generated by the splice effect will act on the longitudinal joint bolt. The bending stress generated by this shearing force is deemed to increase and concentrate on the end of the segment according to the increase of the width of the segment.<BR>The object of this study is to analyze the relationship between the width of the segment and the distribution of the bending stress experimentally, by using four types (width 300, 400, 500, 600mm) of flat-type RC segment models.<BR>Through this experiment, we found that the increase of the segment-width causes the concentration of the bending stress at the end of the segment. Therefore when designate the segment wider than 1200mm, it is necessary to examine this increase of the bending stress and consider the effective countermeasure.

収録刊行物

• トンネル工学研究発表会論文・報告集

  トンネル工学研究発表会論文・報告集 4 25-32, 1994

  公益社団法人 土木学会

キーワード

• shield tunnel
• RC segment
• splice effect
• width of a segment
• stress distribution

詳細情報

• CRID: 1390001205398893184
• NII論文ID: 130004387195
• DOI: 10.11532/journalte1991.4.25
• ISSN: 18849091
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可