Experimental study of shear behavior of rock joints under constant normal stiffness conditions

B. Indararatna, A. Haque

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The shear behavior of model soft joints is studied under constant normal stiffness conditions, with special reference to the influence of infill simulating the field conditions. Dry commercial bentonite is used as an infill material to simulate prototype joint interfaces. It is found that a small thickness of bentonite infill is sufficient to reduce the peak stress significantly. As expected, the peak shear stress almost approaches that of the shear strength of infill when the infill thickness to asperity height ratio reaches 1.60.

Original languageEnglish
Number of pages1
JournalInternational Journal of Rock Mechanics and Mining Sciences
Issue number3-4
Publication statusPublished - 1 Apr 1997
Externally publishedYes
EventUS Rock Mechanics Symposium 1997 - New York, United States of America
Duration: 29 Jun 19972 Jul 1997
Conference number: 36th

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