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The effect of non-persistent joints on sliding direction of rock slopes
, Article Computers and Concrete ; Volume 17, Issue 6 , 2016 , Pages 723-737 ; 15988198 (ISSN) ; Haeri, H ; Khaloo, A ; Sharif University of Technology
Techno Press
Abstract
In this paper an approach was described for determination of direction of sliding block in rock slopes containing planar non-persistent open joints. For this study, several gypsum blocks containing planar non-persistent open joints with dimensions of 15?15?15 cm were build. The rock bridges occupy 45, 90 and 135 cm2 of total shear surface (225cm2 ), and their configuration in shear plane were different. From each model, two similar blocks were prepared and were subjected to shearing under normal stresses of 3.33 and 7.77 kg/cm-2 . Based on the change in the configuration of rock-bridges, a factor called the Effective Joint Coefficient (EJC) was formulated, that is the ratio of the effective...