風化による組成と組織の変化が岩石の破壊特性に及ぼす影響 Influence of Compositional and Textural Changes by Weathering on Breakdown Property of Rocks

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著者

    • 柏谷 公希 KASHIWAYA Kouki
    • 北海道大学大学院工学研究科環境循環システム専攻 Division of Solid Waste, Resources and Geoenvironmental Engineering, Graduate School of Engineering, Hokkaido University
    • 米田 哲朗 YONEDA Tetsuro
    • 北海道大学大学院工学研究科環境循環システム専攻 Division of Solid Waste, Resources and Geoenvironmental Engineering, Graduate School of Engineering, Hokkaido University

抄録

Influence of compositional and textural changes by weathering on breakdown property of rocks was considered through two cases.<BR>First case is the slaking property change of Poronai siltstone by preceding deteriorations such as weathering alteration and shear by landslide. The altered sample, where increase in smectite was observed, showed accelerating slaking behavior. In contrast, the sample, that was fractured by landslide but not altered, showed drastic slaking in the early stage of the slaking test and then approached to the behavior of intact sample.<BR>Second case is the influence of weathering on breakdown behavior in uniaxial compressive test. Samples are Inada granite and Kuroishiyama gabbro. In their weathered samples, fractures occurred by weathering were observed and their distributions had close relationships with the composition and texture of the plutonic rocks. Breakdown behaviors in the uniaxial compression were affected by the fractures developed through weathering.<BR>In these two cases, the breakdown behaviors are considered to relate with compositional and textural changes occurred by weathering, and it indicates that grasping about compositional and textural change is essential for understanding and prediction of physical property variation in weathering environment.

収録刊行物

  • 資源と素材 : 資源・素材学会誌  

    資源と素材 : 資源・素材学会誌 122(12), 596-600, 2006-12-25 

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10018661316
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    8628106
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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