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NTIS 바로가기한국농공학회논문집 = Journal of the Korean Society of Agricultural Engineers, v.55 no.4, 2013년, pp.1 - 11
이준용 (한국건설기술연구원 Geo-인프라연구실) , 한진태 (한국건설기술연구원 Geo-인프라연구실)
Unsaturated hydraulic conductivity function is one of key parameters to solve the flow phenomena in problems of landslide. Prediction models for hydraulic conductivity function related to soil-water retention curve equations in many geotechnical applications have been still used instead of direct me...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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불포화 지반의 거동분석을 위한 불포화토 역학은어떤 역할을 갖는가? | 지반공학 설계에 있어 물리적이고 기후변화에 의해 야기되는 하중변화에 대한 토사의 수리학적 거동 및 역학적 거동 분석은 설계수명동안 구조물의 안정성 유지를 위하여 필수적으로 요구되어진다. 특히, 많은 지반공학 현장, 특히 사면, 옹벽, 도로포장 등에 있어 불포화 지반의 거동분석을 위한 불포화토 역학은 지반 구조물의 안정성을 유지하는데 매우 중요한 역할을 담당하고 있다. 하지만 이러한 중요성에도 불구하고 아직까지 현장에서의 불포화토 역학의 적용은 미미한 실정이다. | |
불포화토 흐름특성에 대한 측정 시 문제점은? | 따라서, 불포화된 지반내 침투 및 배수과정 동안의 합리적인 흐름 분석을 위해서는 선행적으로 함수특성곡선과 투수계수함수로 대표되어지는 불포화토 흐름특성에 대한 측정이 선행되어져야 한다. 하지만, 불포화토 흐름특성의 측정의 경우 긴 측정시간, 복잡한 실험준비 및 과정이라는 단점으로 인하여 현재까지 많은 현장에서는 불포화토 흐름특성, 특히 투수계수함수를 결정하기 위하여 기존에 제시되었던 경험적 예측식들 또는 이론적 모델들에 크게 의존하고 있다. | |
지반공학 설계에 있어 무엇이 필수적인가? | 지반공학 설계에 있어 물리적이고 기후변화에 의해 야기되는 하중변화에 대한 토사의 수리학적 거동 및 역학적 거동 분석은 설계수명동안 구조물의 안정성 유지를 위하여 필수적으로 요구되어진다. 특히, 많은 지반공학 현장, 특히 사면, 옹벽, 도로포장 등에 있어 불포화 지반의 거동분석을 위한 불포화토 역학은 지반 구조물의 안정성을 유지하는데 매우 중요한 역할을 담당하고 있다. |
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