Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
권호 표지

The example of face mapping on rock slope at Chubu-Daejeon national road

옥천계 분포지 추부-대전 간 국도 대절토 사면의 Face Mapping 사례

  • 이병주 (한국지질자원연구원 지질기반정보연구부) ;
  • 채병곤 (한국지질자원연구원 지질환경재해연구부) ;
  • 이경미 (한국지질자원연구원 지질환경재해연구부)
  • Published : 2006.03.24
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Abstract

At new constructing national road, a cutting slope was surveyed and gotten face mapping for three months. The slope is composed of gray phyllite and coaly slate which is the Chang-ri Formation, Okcheon system. The slope angle is 40 degree and the direction is NNE. The attitude of schistosity is $260^{\circ}/45^{\circ}$. So the slope direction is nearly parallel to the schistosity. This is the reason that the slope is very unstable. On the other hand, the very unstable slope is caused by the direction of the schistosity and the slope. First month the coaly slate was slided through the schistosity plane about 10cm. However, three months late the displacement was 2m maximum.

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