EFFECTS OF MULTIPLE-LAYER SUPPORTING METHOD IN SQUEEZING ARGILLACEOUS ROCKS

DOI 1 Citations 15 References

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Other Title
  • 膨圧性泥質岩地山におけるトンネルの多重支保工の効果

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Abstract

The multiple-layer supporting method for a tunnel in squeezing argillaceous rocks is defined as the method to control the tunnel displacement within the displacement tolerance. Results of its application to Iiyama Tunnel are described. The respective functions of the first and second layer supports are examined based on the measured tunnel displacement and support stress behaviors. Three-dimensional numerical analysis on this tunneling method is performed to discuss the role of the second layer support applied at different distances from the face. The appropriate execution management conditions are proposed based on the execution experiences. Consequently, it is found to be a very flexible, secure and rational tunneling method.

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Details 詳細情報について

  • CRID
    1390001205254665472
  • NII Article ID
    10019322780
  • NII Book ID
    AA12131726
  • DOI
    10.2208/jscejf.62.312
  • ISSN
    18806074
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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