LABORATORY INVESTIGATION ON SHEAR STRENGTH VARIATION OF JOINT REPLICAS DUE TO LOW AND HIGH AMPLITUDE CYCLIC DISPLACEMENTS

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JAFARI M.K.; AMINI HOSSEINI K.; BOULON M.; PELLET F.; JALALY H.; OUROUMIEHEI ALI; BUZZY O.

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Journal Paper

Paper Information

Journal: Journal of Seismology and Earthquake Engineering Year:2002 | Volume:4 | Issue:2-3 Page(s): 37-49

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Title

LABORATORY INVESTIGATION ON SHEAR STRENGTH VARIATION OF JOINT REPLICAS DUE TO LOW AND HIGH AMPLITUDE CYCLIC DISPLACEMENTS

Author(s)

Keywords

SHEAR STRENGTH

ROUGHNESS

FIRST AND SECOND ORDER ASPERITIES

CYCLIC BEHAVIOR

DAMAGE

ASPERITY DEGRADATION

RATE OF LOADING

NUMBER OF CYCLES

FREQUENCY AND AMPLITUDE OF LOADING

Abstract

The dynamic stability of shallow underground openings in jointed rock masses depends on several parameters that the most important of them for design engineers is the SHEAR STRENGTH of rock joints. In this research in order to study the effects of cyclic loading on this parameter, about 50 joint replicas have been tested using triaxial and direct shear testing devices. The saw-tooth identical joint samples were prepared using silicon moulds and special mortar. The samples have been tested in different loading conditions to simulate the effects of small and large earthquakes. Variations of the SHEAR STRENGTH with the parameters of cyclic loading and also degradation of asperities have been studied during the tests. The results show considerable changes of SHEAR STRENGTH due to the RATE OF LOADING, NUMBER OF CYCLES, FREQUENCY AND AMPLITUDE OF LOADING. Also the trends of wearing and ASPERITY DEGRADATION have been studied in higher levels of cyclic displacement.

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APA: Copy

JAFARI, M.K., AMINI HOSSEINI, K., BOULON, M., PELLET, F., JALALY, H., OUROUMIEHEI, ALI, & BUZZY, O.. (2002). LABORATORY INVESTIGATION ON SHEAR STRENGTH VARIATION OF JOINT REPLICAS DUE TO LOW AND HIGH AMPLITUDE CYCLIC DISPLACEMENTS. JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING, 4(2-3), 37-49. SID. https://sid.ir/paper/528418/en

Vancouver: Copy

JAFARI M.K., AMINI HOSSEINI K., BOULON M., PELLET F., JALALY H., OUROUMIEHEI ALI, BUZZY O.. LABORATORY INVESTIGATION ON SHEAR STRENGTH VARIATION OF JOINT REPLICAS DUE TO LOW AND HIGH AMPLITUDE CYCLIC DISPLACEMENTS. JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING[Internet]. 2002;4(2-3):37-49. Available from: https://sid.ir/paper/528418/en

IEEE: Copy

M.K. JAFARI, K. AMINI HOSSEINI, M. BOULON, F. PELLET, H. JALALY, ALI OUROUMIEHEI, and O. BUZZY, “LABORATORY INVESTIGATION ON SHEAR STRENGTH VARIATION OF JOINT REPLICAS DUE TO LOW AND HIGH AMPLITUDE CYCLIC DISPLACEMENTS,” JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING, vol. 4, no. 2-3, pp. 37–49, 2002, [Online]. Available: https://sid.ir/paper/528418/en

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