The Journal of Engineering Geology (지질공학)

The Korean Society of Engineering Geology (대한지질공학회)
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Optimal Measurement System for Weak Rock Slopes in an Open-Pit Mine

노천광 연약 사면에서의 계측시스템 선택을 위한 고찰

  • SunWoo, Choon (Geologic Environment Div., Korea Institute of Geoscience and Mineral Resources) ;
  • Ryu, Dong-Woo (Geologic Environment Div., Korea Institute of Geoscience and Mineral Resources) ;
  • Jung, Yong-Bok (Geologic Environment Div., Korea Institute of Geoscience and Mineral Resources) ;
  • Park, Do-Hyun (Geologic Environment Div., Korea Institute of Geoscience and Mineral Resources)
  • 선우춘 (한국지질자원연구원, 지구환경연구본부) ;
  • 류동우 (한국지질자원연구원, 지구환경연구본부) ;
  • 정용복 (한국지질자원연구원, 지구환경연구본부) ;
  • 박도현 (한국지질자원연구원, 지구환경연구본부)
  • Received : 2012.03.13
  • Accepted : 2012.04.20
  • Published : 2012.06.30
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Abstract

The slope design of an open-pit mine must ensure slope stability and economic feasibility. The overall slope angle of the pit is therefore the main factor of concern because of limited support or reinforcement options available in such a setting. This study examines the optimal measurement system for monitoring the behavior of the slope in an open-pit mine using displacement measurement, data analysis, and numerical simulations for a coal mine at Pasir, Indonesia. The area of slope to be managed is extensive and the maximum displacement, as calculated by numerical analysis, is about 3,000 mm. The displacement data, measured by inclinometer and GPS, were analyzed, and the applicability of SSR (slope stability radar) was reviewed in comparison with other monitoring systems.

노천광산에서 사면설계는 안정성과 경제성 측면에서 동시에 접근하여 결정해야 한다. 또한 일반 도로 사면과 달리 대부분 보강 없이 굴착해야 하기 때문에 사면경사가 가장 중요한 설계 변수이다. 본 연구에서는 인도네시아 Pasir 광산의 Roto South 채탄장에 대한 사면 변위계측, 계측자료의 해석 및 수치해석을 통해 사면의 거동을 감시하기 위한 계측 시스템을 제안하고자 한다. Pasir 광산의 경우 관리해야할 사면의 영역이 매우 광범위하고, 수치해석에 의한 예상 변위량은 최대 3,000 mm 정도로 나타났다. 현장에서 수행된 경사계에 의한 계측 및 GPS에 의한 변위 계측에 대한 검토와 자동화를 위한 SSR (slope stability radar system)의 적용에 대해 검토하였다.

Keywords

References

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