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Journal of the Korean Society of Hazard Mitigation 2012;12(4):59-66.
Published online August 31, 2012.
수리모형실험을 통한 복합지하공간 침수방지대책 영향 평가
신동수, 박재범, 손태석, 조덕준
Preventive Measures Assessment to Prevent Flooding Complex Underground Space through Hydraulic Model Experiment
Dong Soo Shin, Jae Beom Park, Tae Seok Shon, Deok Jun Jo
Abstract
Variation of the urban functions on complex underground space development and increasing demand, and due to heavy rainfall caused by climate changing, flooding in complex underground space into a situation where the possibility of more increases to minimize flood damage in underground space for various requires measure to prevent flooding. In order to establish the optimal protect against flooding, a study uses the hydraulic and numerical model experiments, and each inundation measures the flow characteristics in an underground space required for the research and studies in a Korea, however, it has been little. In this study, the risk of flooding underground space in the presence of EPA SWMM model basin runoff analysis to build up complex underground space and the results were applied at a flow rate on flooding. Not only the study calculated the experimental value every scenario through checking whether there is storage facility or not, the installation of the sand bag and barrier wall by making the underground space of special building which mainly affected by the quantity of runoff in the object basin into hydraulic model, but also tried to analyze the flooding tendency of the underground by figuring out water level change of the Inundation.
Key Words: Hydraulic model test; Risk of inundation; Inundation time; Flood disaster prevention; Underground space
요지
도시기능의 다양화는 복합 지하공간에 대한 개발과 수요를 증가시키고 있으며, 기후변화로 인한 집중호우 등으로 복합 지하공간의 침수 가능성은 더욱 높아지고 있는 상황으로 지하공간에서의 침수피해를 최소화하기 위한 다양한 침수방지 대책이 필요하다. 최적의 침수방지 대책 수립을 위해서는 수리 및 수치모형 실험등을 통하여 침수방지 대책별 지하공간에서의 흐름특성에 대한 연구가 필요하나 국내에서는 이에 대한 연구가 미흡한 실정이다. 본 연구에서는 지하공간 침수위험성이 존재하는 유역을 대상으로 EPA SWMM 모형을 구축하여 유출해석을 수행하고 그 결과를 복합지하공간에 대한 침수유량으로 적용하였다. 또한, 지하저류시설, 모래주머니, 차수벽 등의 침수방지대책을 고려한 시나리오를 구축 후 수리모형실험을 통해 주요 지점별 침수수위 변화를 파악함으로써 지하 공간의 침수위험도를 분석하였다.
핵심용어: 수리모형실험; 침수위험도; 침수시간; 홍수방지대책; 지하공간
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