Laboratory characterization of rock joints [electronic resource].
- Published
- Rockville, Md. : U.S. Nuclear Regulatory Commission, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 236 pages : digital, PDF file
- Additional Creators
- U.S. Nuclear Regulatory Commission and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- A laboratory characterization of the Apache Leap tuff joints under cyclic pseudostatic and dynamic loads has been undertaken to obtain a better understanding of dynamic joint shear behavior and to generate a complete data set that can be used for validation of existing rock-joint models. Study has indicated that available methods for determining joint roughness coefficient (JRC) significantly underestimate the roughness coefficient of the Apache Leap tuff joints, that will lead to an underestimation of the joint shear strength. The results of the direct shear tests have indicated that both under cyclic pseudostatic and dynamic loadings the joint resistance upon reverse shearing is smaller than that of forward shearing and the joint dilation resulting from forward shearing recovers during reverse shearing. Within the range of variation of shearing velocity used in these tests, the shearing velocity effect on rock-joint behavior seems to be minor, and no noticeable effect on the peak joint shear strength and the joint shear strength for the reverse shearing is observed.
- Report Numbers
- E 1.99:nureg/cr--6178
E 1.99: cnwra--93-013
cnwra--93-013
nureg/cr--6178 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
05/01/1994.
"nureg/cr--6178"
" cnwra--93-013"
"TI94015004"
Ghosh, A.; Chowdhury, A.H.; Hsiung, S.M.; Ahola, M.P.; Kana, D.D.
View MARC record | catkey: 14415880