長尺切羽補強工を施工した切羽前方地山の挙動について

• 清水 利郎

  熊谷・前田・鴻治共同企業体安芸府中トンネル作業所

• 尾畑 洋

  熊谷・前田・鴻治共同企業体安芸府中トンネル作業所

• 松尾 勉

  (株) 熊谷組土木事業本部トンネル技術部

• 手塚 仁

  (株) 熊谷組土木事業本部トンネル技術部

• 岡部 正

  (株) ケー・エフ・シートンネル技術室

書誌事項

タイトル別名

• Behavior of the ground ahead of the face reinforced with long GFRP face forepiling

抄録

The Aki-Fuchu twin tunnels on the Hiroshima Expressway No.1 have two lanes each, with 30 to 40 m overburden. The geology of that region is composed of heavily weathered granite and diorite, which are extremely decomposed due to deep weathering. Therefore, the tunnel face is unstable and the convergence is noticeable. For ensuring face stability, tunneling is advanced with long face forepiling using glass fiber reinforced plastic tubes. The long face forepiling has found wider applications these days. However, almost no quantitative measurement data are available at present. In this context, the authors determined the ground behavior by measuring the axial force in the long face forepiles and the displacement ahead of the face, and quantitatively evaluated the effect of this technique by conducting numerical analysis.

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 13 225-230, 2003

  公益社団法人 土木学会

キーワード

• tunnel
• long face forepiling
• extrusion measurement
• face stability

詳細情報

• CRID: 1390282680376862464
• NII論文ID: 130004387024
• DOI: 10.11532/journalte1991.13.225
• 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