• Title/Summary/Keyword: 방재성능

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Numerical Study on Performance of a Floating Breakwater (단일 부유식 방파제의 소파성능에 관한 수치해석)

  • Shin, Gyeong-Sik;Yoon, Jae-Seon;Cho, Yong-Sik
    • 한국방재학회:학술대회논문집
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    • 2010.02a
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    • pp.63.2-63.2
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    • 2010
  • 본 연구에서는 CADMAS-SURF를 이용하여 단일 부유식 방파제의 소파성능에 관한 수치해석을 수행하였다. 방파제는 단일 배치하였고, 소파성능을 평가하는 지표로써 투과계수를 중심으로 분석하였다. 수치해석 결과의 검증을 위하여 동일한 조건하에 수리모형실험을 수행하였다. 단일 부유식 방파제의 투과계수는 심해파 조건에서 효과적인 소파성능을 나타냈다.

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Estimation of Disaster Prevention Target Rainfall according to Urban Disaster Prevention Performance (도시방재성능에 따른 방재성능목표 강우량 산정 연구)

  • Jeong, Min-Su;Oak, Young-Suk;Lee, Young-Kune;Lee, Young-Sub;Park, Mi-Ri;Lee, Chul-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.4
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    • pp.101-110
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    • 2017
  • The National Emergency Management Agency (NEMA) presented the disaster prevention performance target rainfall (DPPTR) for disaster prevention. The estimation criteria for DPPTR is a 10 year cycle. On the other hand, the target rainfall recalculated every 10 years is difficult to reflect the current change in rainfall on climate change. In this study, the probability of precipitation using the recent rainfall data was prepared and the weights according to socio-economic criteria reflecting the urban characteristics and adjusted probability rainfall criteria were applied to the results. The difference between the existing target rainfall and recalculated result was compared. The input data for the estimated probability rainfall was selected from 6 points located in the rainfall observing station of Chungcheongnam-do, Daejeon region. As a result of the estimation, in the case of upward probability precipitation weight, some similar areas were observed. On the other hand, there were a few cases of upward or downward changes within 10 mm. Considering the rainfall variability and uncertainty due to climate change, the existing target rainfall does not present the condition properly. Therefore, hydrological designers need to calculate the target rainfall, reflecting the present condition.