ESTIMATION OF DETERIORATION CHARACTERISTICS OF SOFT ROCKS AND ITS APPLICATION

Simple and convenient tests to clarify the deterioration characteristics of soft rocks were practiced. After discussing the correlations of testing results, 6 items are selected to evaluate the swelling potential. They are clay and silt-clay contents in the mechanical analysis of soil, the plasticity index, the amount of absorbed water in simple absorbing tests, the degree in simple collapse tests in water, and the montmorillonite content by means of the X-ray reflection method. It is found that the composite estimation of the swelling potential and the mechanical property of sampled rocks show good correspondence with the tendency of the actual earth pressure behaviors in tunneling sites.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  JAPANESE NATIONAL RAILWAYS

  TOKYO,   Japan 
• Authors:
  • Yoshikawa, K
  • SAKURAI, T
  • Tatematsu, H
• Publication Date: 1984

Media Info

• Features: References;
• Pagination: p. 3-6
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 25
  • Issue Number: 1
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Clay; Deterioration; Earth pressure; Montmorillonite; Railroads; Rocks; Soft soils; Soils; Testing; Tunneling; Tunnels; X ray analysis; X rays
• Old TRIS Terms: Tunnels and tunneling
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Public Transportation; Railroads;

Filing Info

• Accession Number: 00390106
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 30 1984 12:00AM