PREVENTION OF LARGE-SCALE FALLING ROCKS ABOVE TUNNEL PORTAL

DOI

Bibliographic Information

Other Title
  • トンネル坑口部の大規模落石防護対策工について

Description

Omi tunnel on Hokuriku-shinkansen is located on westside area of the Itoigawa-Shizuoka tectonic line, which is one of the major geological tectonic lines in Japan, with complicated geological formation structure and distribution.<BR>The upper part of the Omi tunnel west portal is covered with overhanging cliff about 20 metershigh, and the slope above the cliff is spotted with many loose rocks and boulders.The lower portal is distributed with talus cone sedimentation and fallen rocks from the cliff.<BR>We present the processes from our overall study, planning, selection and execution of adopted for the prevention measures of large-scale falling rocks, in consideration of topography, geology and safety during and after the construction.

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Keywords

Details 詳細情報について

  • CRID
    1390001205399029120
  • NII Article ID
    130004386921
  • DOI
    10.11532/journalte1991.12.201
  • ISSN
    18849091
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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