• 제목/요약/키워드: slide

검색결과 982건 처리시간 0.032초

GIS를 활용한 무한사면 안정성 해석 기법 연구 (GIS based Infinite slope stability analysis : case study of boeun area)

  • 이연희;정영국;박혁진;이사로;장범수;전귀현
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2003년도 봄 학술발표회 논문집
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    • pp.475-480
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    • 2003
  • Traditionally, the statistical methods analyze the relationship between landslide occurrence and related factors(soil depth, soil strength, slope angle, vegetation, etc.) in GIS technique. However, those methods have no mechanical meaning. Therefore, the deterministic model is suggested in this research. The method analyzes the mechanical equilibrium of a potential slide block and then calculates a slope safety factor. Since this method is able to consider the balance of forces applied to the slope and is a more reasonable method for an individual site. In this research, the spatial data is obtained, managed and analyzed using GIS technique. The infinite slope model is used to evaluate factor of safety and analyze the slope stability.

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베어링 합금재의 캐비테이션 침식-부식거동에 미치는 유화 윤활유의 영향 (Influence of Lubricating Oil Emulsified on the Behaviour of Cavitation Erosion - Corrosion at Bearing Metals)

  • 임우조;이진열
    • Journal of Advanced Marine Engineering and Technology
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    • 제17권3호
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    • pp.42-49
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    • 1993
  • Recently, because the lubricating oil showed a tendency to be emulsified and oxidized by high speed, high output and the extension of maintenance & conservation of marine engine, the cavitation erosion-corrosion at such an environment became a big problem on effective performance of engine. Therefore, there was a need to study the behavior and protection of erosion-corrosion damage, and then applied inhibitor to a protective method of cavitation erosion- corrosion damage. At this time, test environments were marine lubricating oil & various emulsified oil that mixed distilled water and sea water etc., and also used 20KHz, 24.mu.m piezoelectric vibrator as an experimental apparatus of cavitation erosion. With this apparatus, we investigated an influence of the emulsified oil on characteristics of erosion-corrosion and protection for erosion-corrosion by inhibitor at slide bearing metals.

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