EFFECT OF PIPE-ROOF IN TUNNELLING METHOD

Recently the pipe-roof-method has been often carried out as tunnelling subsystem. There is an important problem, surface subsidence for excavation of thin overburden tunnel. One of the measures against this behavior is pipe-roof-method which can suppress them fairly. Only equilibriums, which can be calculated in some ways as external forces, are taken into consideration. But the displacements are not introduced by them, while it is most important for pipe-roof-design. From measurement of displacement and pipe-roof works pipe-roof-effects are found, which are as follows: 1) In supported are a pipe-roof works with a support. 2) Out of supported area, pipe-roof makes displacement of rock mass small. (Edited author abstract)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/05783747
• Corporate Authors:

  Japan Society of Civil Engineers

  1-chome, Yotsuya, Shinjuku-ku
  Tokyo,   Japan  160-0004
• Authors:
  • Okawa, T
  • Yokoyama, J
  • Ishihara, H
  • Kojima, W
• Publication Date: 1985-3

Language

• Japanese

Media Info

• Features: References;
• Pagination: p. 100-107
• Serial:
  • Japan Society of Civil Engineers, Proceedings
  • Issue Number: 355
  • Publisher: Japan Society of Civil Engineers
  • ISSN: 0578-3747

Subject/Index Terms

• TRT Terms: Construction; Excavations; Geological subsidence; Ground settlement; Measurement; Mechanical strain; Rock mechanics; Soil mechanics; Soil stabilization; Tunnel supports; Tunneling
• Old TRIS Terms: Pipe-roof; Tunnels and tunneling
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00455238
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 31 1986 12:00AM