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NTIS 바로가기한국지반환경공학회논문집 = Journal of the Korean Geoenvironmental Society, v.18 no.2, 2017년, pp.29 - 37
박근우 (School of Civil, Environmental and Architectural Engrg., Korea Univ.) , 홍원택 (School of Civil, Environmental and Architectural Engrg., Korea Univ.) , 이종섭 (School of Civil, Environmental and Architectural Engrg., Korea Univ.)
As the behavior of the debris flow due to the torrential rains in mountain is affected by shear strength and rheological properties of the fine fraction in the ground, the evaluation of both properties is necessary to estimate the behavior of the debris flow. The objective of this study is to evalua...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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우리나라에서 발생하는 토사재해의 형태는 어떠한가? | 우리나라에서 발생하는 토사재해는 하절기 집중호우로지반의 함수비가 과도하게 증가하여 사면의 붕괴 후, 액성한계 이상의 토석류(또는 이류)가 발생하는 형태로 나타난다(Lee & Widjaja, 2013). 특히 도심지에서 토사재해가 발생할 경우, 토석류가 도시까지 도달하여 큰 인명피해와 재산피해를 야기하므로, 토사재해 피해방지대책은 도시설계에 있어서 중요한 요소이다. | |
토사재해에 의한 피해를 최소화하기 위하여 시행하는 것은? | 특히 도심지에서 토사재해가 발생할 경우, 토석류가 도시까지 도달하여 큰 인명피해와 재산피해를 야기하므로, 토사재해 피해방지대책은 도시설계에 있어서 중요한 요소이다. 토사재해에 의한 피해를 최소화하기 위하여, 토사재해 발생이 우려되는 지역에서는 사방댐과 같은 방재시설들을 구축하고 있다. 방재시설 구축 시사방댐의 적절한 위치, 규모, 개수를 예측하기 위하여, 토사재해 발생 후 토석류의 규모 등 거동예측에 대한 연구가 요구되는 실정이다. | |
객관적인 토석류 거동예측을 위하여 일관성 있는 전단강도 및유변학적 정수 산정에 대한 연구가 필요한 이유는? | 지역특성 외에도 조성된 시료의 크기 및 상태, 실험장비의 종류에 따라 각기 다른 결과가 도출된다. 그러므로, 객관적인 토석류 거동예측을 위하여 일관성 있는 전단강도 및유변학적 정수 산정에 대한 연구는 매우 중요한 요소이다. |
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