Shear-flow coupling properties of rock joints

Tetsuro Esaki, Kazuhiro Nakahara, Yujing Jiang, Tuyoshi Kimura, Yasuhiro Mitani

Research output: Contribution to conferencePaper

5 Citations (Scopus)

Abstract

The subject of underground utilization whose representative is radioactive waste disposal sites has enhanced the importance of investigating the shear-flow characteristics of the rockmass as a natural barrier. In this study, the joints which have been given the prescribed shear history are used to examine the effects of past shear histories on the shear and hydraulic properties. As a result, some interested characteristics are obtained. Shear stress doesn't show a peak in all the normal stress ranges by the effects of preceded shear histories, even if the normal stress is higher than experienced one. Dilation and hydraulic conductivity have an intimate correlation to each other. Hydraulic conductivity of a historical joint is small on increasing rate and changing quantity, whereas that of a non-historical joint rapidly increases in the initial state of shearing.

Original languageEnglish
Pages739-742
Number of pages4
Publication statusPublished - Jan 1 1995
Externally publishedYes
Event8th International Society for Rock Mechanics Congress, ISRM 1995 - Tokyo, Japan
Duration: Sep 25 1995Sep 29 1995

Other

Other8th International Society for Rock Mechanics Congress, ISRM 1995
CountryJapan
CityTokyo
Period9/25/959/29/95

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All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics

Cite this

Esaki, T., Nakahara, K., Jiang, Y., Kimura, T., & Mitani, Y. (1995). Shear-flow coupling properties of rock joints. 739-742. Paper presented at 8th International Society for Rock Mechanics Congress, ISRM 1995, Tokyo, Japan.