The Radial Deformation of Rock Specimen in the Post-faolure Region under the Triaxial Comperession Test.

DOI Web Site 2 Citations 4 References
  • SAITO Toshiaki
    Dept. of Earth Resources Eng., Graduate School of Eng., Kyoto Univ., Sakyo–ku, Kyoto 606–8501
  • MURATA Sumihiko
    Dept. of Earth Resources Eng., Graduate School of Eng., Kyoto Univ., Sakyo–ku, Kyoto 606–8501
  • IMAMURA Masahiro
    Graduate student, Dept. of Earth Resources Eng., Graduate School of Eng., Kyoto Univ.
  • SASAO Haruo
    Graduate student, Dept. of Earth Resources Eng., Graduate School of Eng., Kyoto Univ.

Bibliographic Information

Other Title
  • 岩石の三軸圧縮試験における強度破壊点以降の横方向変形
  • ガンセキ ノ 3ジク アッシュク シケン ニ オケル キョウド ハカイテン イ

Search this article

Abstract

The triaxial compression test was conducted for Akiyoshi marble, Shirahama sandstone and Berea sandstone with the three kinds of confining pressure, 15 MPa, 25 MPa and 35 MPa. During the test, the radial displacement of the rock specimen was measured by the twelve displacement meters of cantilever type set around the cylindrical rock specimen in every 30° at the center cross section. In order to understand the behavior of the radial deformation with increasing the axial strain in the post-failure region, the measured radial deformation was analyzed by decomposing it into four modes of the deformation. They were isotropic deformation, anisotropic deformation, parallel movement of the specimen and sliding along the generated fault plane. Consequently, for the different rock types and for the different confining pressures, it was cleared that the major deformation mode changed from isotropic deformation to sliding along the generated fault plane, and the point when the faulting is initiated was also cleared. Furthermore, it was cleared that the relationship between the maximum radial strain and the axial strain is almost linear in the post-failure region.

Journal

  • Shigen-to-Sozai

    Shigen-to-Sozai 114 (12), 901-908, 1998

    The Mining and Materials Processing Institute of Japan

Citations (2)*help

See more

References(4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top