The Journal of Engineering Geology (지질공학)

The Korean Society of Engineering Geology (대한지질공학회)
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Consideration of Minimum Safety Factors for Cut-slope Infiltration Analysis

깎기비탈면 침투해석을 위한 최소 안전율 적용성 고찰

  • Lee, Jeong-Yeob (Geotechnical Engineering Research Division, Korea Institute of Construction and Technology) ;
  • Rhee, Jong-Hyun (Geotechnical Engineering Research Division, Korea Institute of Construction and Technology) ;
  • Oak, Young-Suk (Geotechnical Engineering Research Division, Korea Institute of Construction and Technology) ;
  • Koo, Ho-Bon (Geotechnical Engineering Research Division, Korea Institute of Construction and Technology)
  • 이정엽 (한국건설기술연구원 GEO-인프라연구실) ;
  • 이종현 (한국건설기술연구원 GEO-인프라연구실) ;
  • 옥영석 (한국건설기술연구원 GEO-인프라연구실) ;
  • 구호본 (한국건설기술연구원 GEO-인프라연구실)
  • Received : 2012.09.07
  • Accepted : 2012.11.12
  • Published : 2012.12.31
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Abstract

Infiltration characteristics of cut-slope safety factors are considered for precipitation duration and intensity. Infiltration characteristics (infiltration module) and safety factor (slope module) changes of a cut-slope are analyzed under various conditions of precipitation intensity and duration, using the Soilworks program. The results indicate that the addition safety factors of the slope decreased immediately after the end of precipitation due to an increase in pore water pressure. The minimum safety factor for cut-slope infiltration analysis should be considered because of the because of the decrement of safety factors after precipitation that exceeds the decrement of safety factor during the duration of precipitation.

본 연구에서는 강우지속시간과 강우종료 후 침투에 의한 깎기비탈면 안전율 변화를 고찰하였다. 강우강도와 강우지속시간의 다양한 조건에서 깎기비탈면의 침투특성과 안전율 변화는 soilworks 프로그램으로 분석하였다. 분석 결과, 깎기비탈면 안전율은 강우 종료 후에 간극수압의 증가로 추가적으로 감소하여 최소 안전율에 도달한다. 강우지속시간 동안 안전율 감소율보다 강우종료 후 안전율 감소율이 더 큰 경우도 발생하게 되므로, 깎기비탈면 침투해석 시 유의해야 할 것이다.

Keywords

References

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