一軸引張応力下での岩石の破壊過程に関する研究 Failure Process of Rock in Uniaxial Tension

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The behavior of rock in tension is considered to be as important as in compression for designing underground structures, especially large ones. But few results of tensile tests have been reported. The servo-controlled testing machine was used in this study, and uniaxial tension tests were conducted on six rocks (one granite, one andesite, one tuff and three sandstones). Complete stress-strain curves were successfully obtained, and compliance and irrecoverable strain were evaluated by unloading-reloading test. The main results can be summarized as follows; 1) Compliance increases through the whole process. But in the pre-failure region, the increase rate is relatively slight. On the other hand, compliance in the post-failure region increases rapidly with decrease of the load bearing capacity. 2) Irrecoverable strain is closely correlated with compliance change, i. e. with crack growth. The failure process of rock was discussed in detail based on the evaluation of compliance as well as irrecoverable strain. 3) The shape of stress-elastic strain curves in uniaxial tension tests are similar to those in uniaxial compression tests.

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  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan  

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 114(12), 925-930, 1998-11 

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10002468740
  • 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
    4614131
  • 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  CJP引用  NDL  J-STAGE 
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