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http://dx.doi.org/10.7843/kgs.2021.37.7.5

Study on the Relationship of JRC Affecting the Safety Factor of Rock Slope  

Park, Choon-Sik (School of Civil, Environment and Chemical Engrg., Chanwon National Univ.)
Jeong, Chang-Keun (Seum Construction)
Publication Information
Journal of the Korean Geotechnical Society / v.37, no.7, 2021 , pp. 5-12 More about this Journal
Abstract
When drilling investigations for Rock Slopes are not possible, it is often difficult to calculate the Ground Design Constants required for the Limit Equilibrium Analysis. Therefore, the outcrops or partially cutted Rock Slopes were analysed using JRC and JCS that can be easily and conveniently measured. In particular, the effect of the JRC on the Safety Factor or the Rock Slopes was analyzed intensively, and the results were presented as a relationship formula and Table. When the Rock slope was stable, the JRC increased by an average of 9.0% as the slope height increased, and increased by an average of 29.8% as the slope angle increased. JRC was more sensitive to slope angle changes. The Cohesion corresponding to JRC was calculated from JRC-Fs formula. JRC and Cohesion showed a nonlinear relationship, and the Cohesion was about 8.0% more sensitive to slope height changes than slope angle changes.
Keywords
Cohesion; JRC; Relationship formula; Rock slope; Safety factor; Slope angle;
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  • Reference
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