CONSTRUCTION OF ELLIPTIC SECTIONAL UNDERPASS BY NEW PIPE JACKING METHOD

An underpass in the Omiya Railways shunting yard was built by the segmented jacking method, which was developed by Japanese National Railways in 1976. The author of this paper previously made measurements related to soil investigations, the thrust of a segment jacking, the displacement of the rail and of the formation level due to jacking, and deflections of tunnel lining caused by a train passing after the segment jacking was completed. On this paper, the author proposes a new formula to estimate the necessary jacking force of a driving machine and the value of the effective flexural ratio which is needed to design such a tunnel lining.

  • Availability:
  • Corporate Authors:

    JAPANESE NATIONAL RAILWAYS

    TOKYO,   Japan 
  • Authors:
    • Takeshita, S
  • Publication Date: 1983-3

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00381588
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Feb 29 1984 12:00AM