Analysis and measurements of the effect of shield advance in close proximity to and transverse to a tunnel based on fiber optic measurements

• Oku Yoji

• Horichi Noriyuki

• Koizumi Atsushi

• Hiroka Shizuo

Bibliographic Information

Other Title

• 光ファイバーケーブルによるシールド近接交差計測と既設トンネルの断面力解析

Abstract

An analysis was made of the effect of the advance of tunnel boring machine (TBM) for constructing double railway tracks under an existing another shield driven tunnel of NTT (Nippon Telegraph and Telephone Corporation) with a clearance of approximately 3 m. The convergence of the NTT tunnel and displacement of the ground transverse to the tunnel were measured using the reflection of laser beam from the target in the fiber optic cable laid in the tunnel. To determine the effect of tunneling in the vicinity of the NTT tunnel by advancing a shield across the NTT tunnel, changes in resultant stress in the NTT tunnel were calculated

Journal

• JOURNAL OF TUNNEL ENGINEERING, JSCE

  JOURNAL OF TUNNEL ENGINEERING, JSCE 15 (0), 107-114, 2005

  Japan Society of Civil Engineers

Details

• CRID: 1390001205231138688
• NII Article ID: 130004387513
• DOI: 10.11532/journalte2004.15.107
• ISSN: 18849105
• ISSN: 13495399
• Data Source:
  • JaLC
  • CiNii Articles
  • Crossref
• Abstract License Flag: Disallowed