• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.11a
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• pp.111-112
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• 2013

최근 연평도 포격사건과 같은 북한의 무력공격이나 고밀집시설의 대규모화에 따른 재난사고, 한반도의 기후 온난화 영향에 따른 자연재해에 의한 화생방(CBRNE)피해와 구조 활동의 제약 등으로 인한 막대한 인명 및 재산 피해가 발생가능성과 국외적으로는 911테러, 7.7런던테러 등 다양한 테러사건이 발생하고 있다. 따라서 화생방테러에 총괄적으로 대응하는 노력은 시급한 국가적 과제로 대두되고 있다. 이에 대한 피해저감방안으로 불특정 다수에게 일어날 수 있는 화생방테러에 맞서 교육훈련 프로그램 개발이 필요하여, 본 연구에서는 국내외 화생방 훈련프로그램 분석을 통하여 한국형 화생방 프로그램 컨텐츠를 인지, 기초, 중급, 고급과정으로 구분하여 국내 실정에 맞는 프로그램을 제안하고자 한다.

• Journal of Korean Society for Geospatial Information Science
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• v.24 no.1
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• pp.43-50
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• 2016

Urbanization in Korea has increased significantly and subsequently, various facilities have been concentrated in urban areas at high speed in accordance with a growing urban population. Accordingly, damages have occurred due to a variety of disasters. In particular, fire damage among the social disasters caused the most severe damage in urban areas along with traffic accidents. 44,432 cases of fire occurred in 2015 in Korea. Due to these accidents, 253 were killed and property damage of 4,50 billion won was generated. However, despite the efforts to reduce a variety of damage, fire danger still remains high. In this regard, this study collected fire data, generated from 2007 to 2014 through the Jinju Fire Department and the National Fire Data System(NFDS) and calculated fire risk by analyzing the clustering of fire cases and facilities in Jinju-si based on the current DB of facilities, offered by the Ministry of Government Administration and Home Affairs. As a result, the risk ratings of fire occurrence were classified as four stages under the standards of the US Society of Fire Protection Engineers(SEPE). Business facilities, entertainment facilities, and automobile facilities were classified as the highest A grade, detached houses, Apartment houses, education facilities, sales facilities, accommodation, set of facilities, medical facilities, industrial facilities, and life service facilities were classified as U grade, and other facilities were classified as EU grade. Finally, hazardous production facilities were classified as BEU grade, the lowest grade. In addition, in the case of setting the standard with loss of life, the highest risk facility was the hazardous production facilities, while in the case of setting the standard with property damage, a set of facilities and industrial facilities showed the highest risk. In this regard, this study is expected to be effectively utilized to establish the fire reduction measures against facilities, distributed in urban space by calculating risk grades regarding the generation frequency, casualties, and property damage, through the classification of fire, occurred in the city, according to the facilities.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.394-394
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• 2019

본 연구에서는 최근 기상이변의 영향 및 지진 발생과 저수지 노후화 등으로 지속적으로 발생되고 있는 소규모 저수지 붕괴에 의한 재해 위험성을 경감하고자 댐 저수지 EAP 수립 기준 이하 소규모 저수지를 대상으로 EAP 수립 대상여부를 판단할 선정지표를 개발하였다. 기존의 EAP 수립지침 검토, 과거 붕괴사례 분석, 관련분야 선행 연구 등을 분석하여 저수용량, 제체높이, 경과연수, 호우인자 및 지진인자를 포함하는 5개 선정지표를 정량화 하여 제시하므로 실무적용을 용이하게 하고자 하였다. 또한 개발된 선정지표는 EAP 수립 기준 이하 소규모 저수지에 적용하기에 앞서 각 선정 지표별 저수지 붕괴와의 연관성을 파악하기 위해 과거 저수지 붕괴사례에 단일지표 및 지표간 중첩도를 파악해 보았다. 그 결과, 지진인자, 호우인자, 지진 및 호우인자, 경과연수 지표순 순으로 저수지 붕괴와 높은 연관성을 나타내어, 소규모 저수지 붕괴에 연관되는 주요 지표를 지진인자, 호우인자, 경과연수로 선정하였다. 본 연구에서 선정된 지표간의 중첩정도를 파악하기 위해 과거 저수지 붕괴사례에 적용해 본 결과 호우인자+지진인자가 가장 높은 중첩도를 나타났다. 다음으로 본 연구를 통해 도출된 EAP 수립 대상 선정지표 중 주요 지표인 지진인자, 호우인자, 경과연수를 대상으로 2개의 지표가 중첩될 경우와 3개의 지표가 중첩될 경우를 EAP 수립 대상 관찰그룹과 검토그룹의 각각 분류한 후 이를 재해위험 저수지(MOIS, 2016)에 적용하여 보았다. 그 결과, EAP 수립 대상 관찰그룹에 속하는 경우가 38.5%를 차지하였고, 검토그룹에 속하는 경우가 11.9%를 차지하였다. EAP 수립 대상 관찰그룹에 해당하는 저수지에 대해서는 전문 시설관리자에 의한 주기적 점검 및 계측기 설치를 통한 모니터링 실시 등으로 세심한 시설물 관리가 필요할 것으로 판단되며, EAP 수립 대상 검토그룹에 해당하는 저수지에 대해서는 제체 하류부 구간의 주민 거주 현황, 경작지, 축사 등 재산 현황 및 EAP 수립에 소요되는 예산 등을 종합적으로 고려하여 저수지 관리기관에서 최종적으로 EAP 수립 여부를 결정하여 잠재적인 피해 발생을 사전에 저감시켜야 하겠다. 본 연구의 결과는 기존의 EAP 수립 기준의 보완책으로 활용 가능할 것으로 사료된다.

• Ecology and Resilient Infrastructure
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• v.3 no.2
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• pp.117-125
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• 2016

Current cities encounter various types of water problems due to rapid urbanization and climate change. The increasing significance of urban water problems calls for the establishment of resilient alternatives to prevent and minimize social loss that results from these phenomena. As a background research for establishing resilient infrastructures for the mitigation of urban water problems, we evaluated the robustness of structural alternatives for urban flood as a representative case. Combining the robustness index (RI) and the cost index (CI), we suggested the robustness-cost index (RCI) as an indicator of the robustness of structural alternatives, and applied the index to assess the existing infrastructures and structural alternatives (i.e., sewer network expansion, additional storage tank construction, and green roof construction) at a site prone to floods located around Gangnam-station, Seoul, Korea. At a rainfall intensity frequency range of 2 to 20 years, the usage of a storage tank and a green roof showed relatively high RCI value, with a variation of an alternative showing greater RCI between the two depending on the size of design rainfall. For a rainfall intensity frequency of 30 years, installing a storage tank with some green roofing was the most resilient alternative based on the RCI value. We proposed strategies for establishing resilient infrastructures for the mitigation of urban floods by evaluating the robustness of existing infrastructures and selecting optimal structural alternatives with the consideration of scales of design disaster.

• Journal of Korea Water Resources Association
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• v.55 no.2
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• pp.159-170
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• 2022

As the severity of water-related disasters increases in urban watersheds due to climate change, reducing flood damage in urban watersheds is one of the important issues. This study focuses on prioritizing the optimal site for permeable pavement to maximize the efficiency of reducing flood damage in urban watersheds in the future climate environment using multi-criteria decision making techniques. The Mokgamcheon watershed which is considerably urbanized than in the past was selected for the study area and its 27 sub-watersheds were considered as candidate sites. Six General Circulation Model (GCM) of Coupled Model Intercomparison Project 6(CMIP6) according to two Shared Socioeconomic Pathway (SSP) scenarios were used to estimate future monthly precipitation for the study area. The Driving force-Pressure-State-Impact-Response (DPSIR) framework was used to select the water quantity evaluation criteria for prioritizing permeable pavement, and the study area was modeled using ArcGIS and Storm Water Management Model (SWMM). For the values corresponding to the evaluation criteria based on the DPSIR framework, data from national statistics and long-term runoff simulation value of SWMM according to future monthly precipitation were used. Finally, the priority for permeable pavement was determined using the Fuzzy TOPSIS and Minimax regret method. The high priorities were concentrated in the downstream sub-watersheds where urbanization was more progressed and densely populated than the upstream watersheds.

• Journal of the Korean Association of Geographic Information Studies
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• v.23 no.1
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• pp.1-14
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• 2020

Cities are highly susceptible to disasters due to concentration of population and infrastructure and intensive land use, and there are various factors that affect vulnerability according to regional characteristics. This study analyzed the vulnerability of the heat wave and the surface temperature extracted from Landsat 8 satellite data. Areas with high surface temperature and with high vulnerability did not match. This study overlaid the results of vulnerability analysis and the land surface temperature(LST) in order to identify causes of vulnerability. The results showed that some areas within high-density commercial and semi-residential areas were the most vulnerable, with climate exposure factors, the ratio of the vulnerable populations and residential defective areas being the main causes. Accordingly, alternatives such as green space and residential environmental improvement could be suggested. Various policies for reducing and adapting to heat wave have been established and implemented. However, it is necessary to examine the regional and spatial characteristics of the city, to accurately diagnose the cause of the heat wave, and to prepare appropriate long-term alternatives accordingly.

• Journal of the Korean Association of Geographic Information Studies
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• v.14 no.3
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• pp.68-77
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• 2011

Flood disasters on the metropolis where population and facilities were densely concentrated cause an enormous damage, therefore it is important to find risk and vulnerable area for floods, and then mid-long term disaster reduction plan should be established by the results. However, there is no rational method which reflects urban characteristics to estimate the regional safety for flood. so it is necessary to develop the standardized method of regional safety assesment due to urban flood. The proposed regional safety assesment model in this study was combined risk and mitigation score which consisted of three and two element, and 12 assesment factors which effect flood disasters were selected. And then the integrated regional safety was estimated by subtracting mitigation score from risk score. GIS tool was used to estimate the factor assesment and integrated regional safety. Developed regional safety assesment model was applied in Seoul to evaluate the suitability.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.316-316
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• 2022

최근 기후변화로 인한 극한 강우의 발생빈도가 증가하고 있으며 IPCC는 제6차 기후변화 평가 보고서를 통해 아시아 지역에 이상 기온 현상이 발생하고 강수 변동성이 증가해 도시를 중심으로 홍수로 인한 도시 기반시설 피해가 발생하는 등 이상기후로 인한 자연재해가 증가할 것으로 예측하고 있다. 본 연구에서는 집중호우와 태풍으로 침수피해가 발생한 서울시 신림지역을 대상으로 대표적인 도시침수 해석모형인 XP-SWMM을 이용하여 저영향개발기법(LID)중 하나인 투수블럭의 적용성을 확인하고자 한다. 연구대상지역인 신림2배수구역은 상류에서 서울대배수구역에서의 유출량이 유입되며 하류에서 봉천천배수구역과 합류 후 신림1배수구역으로 유출되며 상류와 하류에서의 경계조건은 도림천 전 유역에 대해 수립된 도림천의 「도시하천 유역종합치수계획」 수립에 따른 유출분석 및 내수침수 해석결과를 적용하였다. XP-SWMM을 적용하여 내수침수를 해석한 결과, 투수블럭을 설치가능한 공간에 최대한 설치할 경우 피해면적에 대한 저감효과가 약 60%이상으로 나타나 불투수면적의 비율이 높은 도시지역에서 효과적인 침수저감 방법임이 확인되었다. 한편 본 연구에서 대상지역으로 선정한 연구지역에서 기왕 일최대강우에 대한 침수지역은 평균 침수심이 매우 얕고, 홍수량 또한 작은 규모이기 때문에 투수성블럭의 침수저감효과가 비교적 과도하게 평가되었다는 한계가 있으나, 빗물펌프장 등 구조적 침수대책이 수립된 후에도 일부 침수지역이 발생하는 소규모 침수지역에 대한 대책으로 투수성블럭이 유의미한 대책이 될 수 있을 것으로 사료된다.

• Korean Journal of Mineralogy and Petrology
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• v.33 no.1
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• pp.73-86
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• 2020

The materials generating from volcanic eruption are volcanic gases, lavas and pyroclastic materials. Volcanic ash which has small-grain size (< 2 mm in diameter) can be moved easily and disperse widely, thus it may affect to communities across hundreds of square kilometers. The impacts from volcanic ash fall on people, structures, equipments, plants and livestock largely depend on ash thickness. According to increasing ash thickness, the intensity and area of damage may increase and affect significant damages not to human health but also to infrastructures. To reduce the impacts from volcanic ash fall, we have to establish the guidances about the nature and extent of the hazard and prepare the actions to increase abilities of communities to manage hazard. Although we don't have any experience caused by volcanic ash fall during and after volcanic eruption, we need to prepare the impacts of volcanic ash fall for future eruption in the areas surrounding Korea.

• Land and Housing Review
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• v.1 no.1
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• pp.75-82
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• 2010

Urban development is a cause of expansion of impervious area. A permanent storage is operated as a method of reducing runoff of watershed. The purpose of study is to propose reasonable choice of simulation model for rainfall-runoff in the prior review system on disaster effect. First, we indicated problem about concentration time choice in the flood simulation. To test the adequacy of a rainfall-runoff simulation model, We analyzed characteristics of rainfall-runoff about urban and natural watersheds. A simulation model was calibrated with the storm of july 7 to July 9 in 2009. From the result, we proposed that SWMM and kinematic wave method as the flood simulation models for urban and natural watersheds. A simulation model and design method of a permanent storage for flood that is proposed in this study will be useful for practical design of flood simulation. The hydrologic analysis method of the study can be used for capacity evaluation of permanent storage plan.