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http://dx.doi.org/10.9720/kseg.2014.1.137

An Example of Changed Design through the Face Mapping and Slope Analysis  

Lee, Byung-Joo (Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources)
Chae, Byung-Gon (Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources)
Lee, Kyoung-Mi (Korea Forest Service, Landslide & Debris flow Control Division)
Publication Information
The Journal of Engineering Geology / v.24, no.1, 2014 , pp. 137-146 More about this Journal
Abstract
The geology of the study area which is located in Samkoe-dong, Dong-gu, Daejeon city comprises black slate, limestone, and pebble-bearing phyllitic rock as meta-sedimentary rocks; and biotite granite and quartz porphyry intrusions. Face mapping revealed sliding in three or four sites of contained coaly slate, where the dip of the foliation and other discontinuities is parallel to the surface slope. The cause of the slope sliding is this parallelism as well as the swelling of the coaly slate when wet. In contrast, the slop on the opposite side of the road is relatively stable because the dip of the foliation and other discontinuities are oblique or normal to the surface slope. To ensure slope stability, a cut-and-cover tunnel was designed and constructed for the new road.
Keywords
Face mapping; Coaly slate; Sliding plane; Slope sliding; Cut-and-cover tunnel;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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