Development of a shear-flow coupling test method for a natural rock joint

Yasuhiro Mitani, T. Esaki, Hiro Ikemi, Y. Yamagami, K. Ikusada

Research output: Contribution to conferencePaper

Abstract

It is very important to investigate the shear-flow coupling properties of rock joint because of their importance in controlling the mechanical and hydraulic properties of rock masses. However, performing shear-flow coupling test on natural rock joint is usually associated with several difficulties including handling, etc. To examine the basic properties of a natural rock joint, a new technique utilizing shear-flow coupling methodology is developed and presented in this work. The newly developed technique is based on a series of steps for the preparation of the specimen from samples. New shear-flow coupling test apparatus have been developed. It has the advantages that it enables one to applying normal loads over an irregularly shaped joint by the use of a two jack system as well as to realize radial flow tests using the labyrinth weir under shear. The shear-flow coupling tests have been carried out for the two kinds of natural rock joint. The effectiveness of the experimental equipment has been confirmed. On the other hand, the change on the permeability of joints during shear has been determined.

Original languageEnglish
Publication statusPublished - Dec 1 2008
Event42nd U.S. Rock Mechanics - 2nd U.S.-Canada Rock Mechanics Symposium 2008 - San Francisco, CA, United States
Duration: Jun 29 2008Jul 2 2008

Other

Other42nd U.S. Rock Mechanics - 2nd U.S.-Canada Rock Mechanics Symposium 2008
CountryUnited States
CitySan Francisco, CA
Period6/29/087/2/08

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics

Fingerprint Dive into the research topics of 'Development of a shear-flow coupling test method for a natural rock joint'. Together they form a unique fingerprint.

  • Cite this

    Mitani, Y., Esaki, T., Ikemi, H., Yamagami, Y., & Ikusada, K. (2008). Development of a shear-flow coupling test method for a natural rock joint. Paper presented at 42nd U.S. Rock Mechanics - 2nd U.S.-Canada Rock Mechanics Symposium 2008, San Francisco, CA, United States.