軟岩の圧縮クリープ過程と一軸圧縮破壊過程の関連性 -岩石のクリープ破壊機構に関する研究(その2)- Relationship between Failure Process of Creep Test and Conventional Compression Test on Soft Rocks -Studies on the creep mrchanism under compressive load of rocks (Part-2)-

この論文にアクセスする

この論文をさがす

著者

抄録

For the rock engineering projects, it is necessary to correctly estimate the mechanical properties of the rock, namely, the stress-strain relations and strength properties, the time-dependent deformation properties and so on. In our previous studies, the drained creep tests under uni-axial compressive load were carried out on some soft rocks in Japan, such as Ohya-Ishi and Kimachi-sandstone. In these experiments, the axial and lateral strains and the acoustic emission activity were observed in the loading time intervals of several minutes ∼ one month. Also, the thin sections for microscope examination conducted on the specimens, which had loaded during the prescribed time or until some region of the creep process. In this study, the creep process and mechanism were discussed by using these experimental data, and the relationship between the failure process of creep loading and conventional uni-axial loading of rock were discussed by the specially planned testing programs of the experiment.by these results, it can be said that the residual compressive strength of the creep loaded rock specimen is almost the same as that of the intact rock, when the axial strain rate is in the decreasing condition, but the residual strength decreases the value when the axial strain rate passes the minimum value and in the increasing condition. Consequently, the failure process of the creep and conventional uni-axial loading are closely connected with each others;the changing point of the residual strength of the creep loaded rock which coincides to the minimum point of the axial strain rate, corresponds to the strength failure point of the rock under the conventional uni-axial compressive loading.

収録刊行物

  • 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(3), 163-168, 1998-03-25 

    The Mining and Materials Processing Institute of Japan

参考文献:  11件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  1件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002467242
  • 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
    4447699
  • 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 
ページトップへ