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http://dx.doi.org/10.17703/JCCT.2022.8.1.507

Slope Stability for Bridge Access Road on Sedimentary Rocks using Geological Cross Sections  

Ihm, Myeong Hyeok (Dept. of Construction Safety, Daejeon Univ)
Publication Information
The Journal of the Convergence on Culture Technology / v.8, no.1, 2022 , pp. 507-512 More about this Journal
Abstract
The subjects of the study are the sedimentary rock slope of the Mesozoic Gyeongsang Supergroup, which has a high risk of failure. The rocks of the slope shall be sandstone, siltstone and dacite, and discontinuities shall develop beddings, shear joints, extension joints, and dacite dyke boundary planes. The type and scale of failure varies depending on the type of rock and the strike/dip of the discontinuities, but the planar failure prevails. Based on the face-mapping data, SMR, physical and mechanical testing of rocks, the critical equilibrium analysis, all representative sections required a countermeasure method because the acceptable safety factor during dry and rainy seasons were far below Fs=1.5 and Fs=1.2. After applying the countermeasure method, both the dry and wet conditions of the slope exceeded the allowable safety factor. In particular, the face-mapping data of the slope-face, the geological cross-sections of several representative sections perpendicular to the slope-face, and the critical equilibrium analysis and the presentation of countermeasure methods that have been reviewed based on them are expected to be reasonable tools for the slope stability.
Keywords
Sedimentary rock; Slope failure; Face-mapping; Geological cross-section; Safety factors;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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