• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.342-342
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• 2021

전세계적의 지구온난화에 따른 기후변화 영향으로 기온상승, 강우증가, 해수면 상승 등에 자연재난의 발생이 증가하고 있다. 그 중 가뭄의 경우 전조증상, 발생원인, 발생기간 뿐만 아니라 대상범위나 피해범위도 불명확하다. 가뭄은 근본적으로 강우량의 부족으로 시작되며 농업, 생활, 공업 등의 전반적인 피해를 발생시킨다. 최근에는 기후변화의 영향으로 기온증가, 해수면상승, 극한호우, 메가가뭄 등 전세계적으로 다양한 자연재난이 빈번히 발생하고 있다. 가뭄은 태풍, 홍수, 지진 등의 자연재난 중에서도 가장 광범위한 피해를 유발시키는 재난이라고 할 수 있다. 미국의 National Oceanic and Atmospheric Administration에서는 20세기의 관측된 가장 심각한 자연재난 중 하나로 가뭄이 선정되었으며 최근 기후변화에 따른 기온 및 강수의 증가는 가뭄피해의 직간접적인 영향으로 피해가 급증할 것이라고 하였다. 본 연구에서는 농업·생활·공업 가뭄에 대하여 피해액과 복구액에 대한 정량적 피해특성을 산정할 수 있는 추정식을 제안하고자 한다. 농업·생활·공업 가뭄에 대한 피해액은 다양한 인자들을 고려하며 매년 변화하는 물가를 반영하여 피해액의 추정식을 제안하였다. 또한, 복구액은 가뭄피해발생으로 발생될 수 있는 농업·생활·공업의 특성에 맞는 복구인자를 구성하였으며 피해에 대한 복구뿐만 아니라 인적, 물적 자원에 대한 인자도 포함하였다. 본 연구에서 산정된 농업·생활·공업 가뭄의 피해액 추정식의 경우 정량적 검증을 위해 1965년부터 2018년까지 국내에서 발생된 가뭄피해와를 대상으로 비교 분석하였다.

• Journal of the Earthquake Engineering Society of Korea
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• v.12 no.2
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• pp.45-52
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• 2008

The telecommunication facilities by the basic law of telecommunication were added to the protection law against natural disasters as a scope of seismic design application on January 2007 since legal regulation had been reinforced in our country as in the circumstance that earthquakes are now frequently occurred in several areas over the world. This paper handles an establishing provision of concrete seismic design specification for applying to telecommunication facilities. For this purpose, this paper classified the parts of telecommunication facilities as being the correspondents to apply seismic design and analyzes the procedure of the design specification of building structure as the part of building construction law as a basic reference for seismic design application. And the method of introducing the foreign specification is presented. Thereon seismic design measures to be introduced into legal regulation are suggested for telecommunication service endurance against earthquake.

• Journal of IKEEE
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• v.18 no.1
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• pp.45-56
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• 2014

Recently, damages from disasters such as downpours, earthquakes and typhoons are increasing throughout the world. The downpour days of Korean Peninsula are also increasing every year due to rapid climate change. According to statistics over the last 30 years of the earthquakes in Korean Peninsula, the probability of a future earthquake is very high. In addition, super typhoons will hit Korean Peninsula due to the temperature rise in the nearby sea caused by the deepening of global warming. Thus, damage costs of the waterfront structures by natural disasters are also growing. But damage information system for integrated management of waterfront structures are insufficient. In this paper, we designed and implemented a damage information system for integrated management of waterfront structures. First, we classified damage information caused by natural disaster. Then we designed the databases of damage information and implemented damage information system. Lastly, we checked operations and the feasibility by testing queries on the proposed system.

• Journal of the Korean earth science society
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• v.43 no.1
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• pp.176-187
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• 2022

Due to recent mid-scale earthquakes in the Korean Peninsula, the Korean central and local governments are preparing new measures for earthquake hazard mitigation. Geological and geotechnical information is essential for earthquake hazard assessment. Thus, related data have been collected and assimilated as DBs by various national organizations. However, several problems arise when local governments intend to use this information to establish earthquake hazard mitigation measures. In the case of the geological information, small-scale geological maps make it difficult to acquire detailed information, whereas lithofacies and faults do not often match at the boundaries of large-scale geological maps. Significant geotechnical information is lost due to lack of digitalization. Present study proposes four policy plans for geological and geological information management. First, it is necessary to link industry-academictechnology fields to use the information that has already been or to be produced more efficiently and professionally. Second, local government regulations are required to be enacted and revised to accumulate a lot of geological and geotechnical information. Third an expert system should be prepared to improve the quality of the information. Fourth, it is necessary to establish a dedicated department and expand budget support for efficient information management.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.5
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• pp.143-150
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• 2021

To develop the technique for predicting the horizontal displacement of a retaining wall induced by an earthquake, an equation of motion that depicts the retaining wall-soil vibrating system was derived. The resulting differential equation was solved using the Runge-Kutta-Nystr?m method. Considering the pre-mentioned derivation process, the analysis procedures for obtaining horizontal displacement induced by an earthquake were programmed. The core algorithm of the displacement-force relationship, which is the main engine of the developed program, was suggested. Considering the results obtained by adopting the developed program to the assumed retaining wall under an earthquake, the relationships between the time-displacement, time-force, and displacement-force were reasonable. According to the results computed by the program, the displacements to the front direction of the wall occurred, and the displacement per cycle converged after some cycles elapsed. Displacements with a natural period were calculated, which showed that the maximum displacement was observed when the natural frequency was slightly different from the excitation frequency rather than the same values of the two frequencies. This happens because the vibrating system was modeled by two springs with different stiffness.

• Journal of Science and Technology Studies
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• v.19 no.3
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• pp.51-117
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• 2019

On 15th November 2017, the coastal city of Pohang, located in the Southeastern part of South Korea was shaken by a magnitude 5.4 earthquake. The earthquake displaced more than 1,700 residents and caused more than $ 300 million dollars of economic loss. It was the second most damaging earthquake in the history of Korea. Soon after the earthquake, a group of scientists raised a possible link between the first Enhanced Geothermal System (EGS) project and the earthquake. At the same time, another group of scientists put forward a different hypothesis of the causation of the earthquake claiming that it was caused by the geological movements that were initiated by the Great Tohoku Earthquake in 2011. Since then, there were scientific debates between the two different groups of scientists. The scientific debate on the causation of the earthquake has been concluded temporarily by the Research Investigatory Committee on the Pohang Earthquake in 2019. The research committee concluded that the earthquake was caused by the Pohang EGS system: this means that the earthquake can be defined not as a natural earthquake, but as an artificially triggered earthquake. This article is to examine the Pohang earthquake can be defined as an Anthropocenic event. The newly suggested concept, the Anthropocene is a relatively novel term to classify the earthly strata and their relationship to geological time. The current geological period should be defined by human activities and man-made earthly environment. Although the term is basically related to geological classification, the Anthropocene has been widely debated amongst humanist and social science scholars. The current disastrous situation of our planet also implies with the Anthropocene. This paper is to discuss how to understand anthropogenic events. In particular, the paper pays attention to two different scholarly positions on the Anthropocene: Isabelle Stenger's Gaia theory and Barbara Herrnstein Smith's relativist theory. The former focuses on the earthly inevitable catastrophe of Anthropocene while the latter suggests to situate and contextualise anthropogenic events. On the basis of the theoretical positions, the article is to analyse how the Pohang earthquake can be located and situated.

• Electronics and Telecommunications Trends
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• v.29 no.3
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• pp.56-65
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• 2014

최근 세계적으로 지구온난화로 인한 이상기후로 수해나 지진 등의 자연재난이 증가하고 그 피해도 대형화되며 종류도 다양화 되는 추세로, 선진 각국은 국민의 생명과 재산을 보호하기 위해 다양한 매체를 활용하여 신속한 재난예보와 경보 전달을 위해 노력하고 있다. 본고에서는 국내외 재난경보 방송동향과 국외 통합경보시스템에 대해 소개하고, 지능 맞춤형 통합경보시스템의 필요성과 연구개발 사례와 연구개발 중인 지능 맞춤형 통합경보시스템을 살펴보고자 한다.

• Magazine of the Korea Concrete Institute
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• v.14 no.2
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• pp.10-16
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• 2002

건물에 있어서 주요 재해는 지진, 폭풍, 홍수 등의 자연현상에 의한 피해와 인위적인 화재에 의한 피해가 있다. 화재는 도시가 확대됨과 동시에 그 빈도가 높아지고 화재규모는 대형화되는 추세며 이에 따른 인적ㆍ물적 피해의 가능성이 높기 때문에, 도시에서는 큰 고민거리가 아닐 수가 없다. 도시는 경제와 산업이 집중하고 인구밀도가 높으며, 건물은 점차 고층화 및 다양화되고 더욱 복잡한 기능을 갖게 되었다. 따라서 대도시가 될수록 건물의 화재예방 및 소방, 재해 후의 조치가 중요시되며, 또한 앞으로의 과제이기도 하다.(중략)

• 한국정보통신설비학회:학술대회논문집
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• 2006.08a
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• pp.128-133
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• 2006

통신시설은 풍수해(태풍, 호우), 화재, 지진 등의 수많은 위험에 직/간접적으로 노출되어 있어 피해가 발생하게 되면 작게는 개인의 통신서비스 중단으로부터 크게는 국가의 중추신경 마비는 물론 사회적 혼란을 야기시킬 수 있는 중요한 시설로써 충분한 내재성이 확보되어야 있어야 하며, 각종 재해 발생시에도 통신수단의 확보가 중요하므로 확실한 재해대책이 강구되어 있어야 한다. 따라서, 본 논문에서는 자연재해가 심한 일본의 통신시설에 대한 재해대책을 고찰하므로서, 우리나라의 통신시설에 대한 재해 대책 수립의 방향을 제시하였다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.04a
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• pp.276-281
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• 2011

일본은 소방제도의 틀이 잘 발달되어 있으면서도 잦은 자연재해 등으로 인해 지역주민에 의한 상부상조의 조직으로서 의용소방대가 발달되어 있다. 특히 화재의 발생이 많지 않거나 사고가 빈번하게 발생하지 않지 않는 지역에서는 의용소방대가 주도적인 역할을 담당하고 있다. 관설소방이 충분히 발달된 지역에서도 지진 등 천재지변의 대응에 대비하여 의용소방대를 육성 발전시키고 있다. 이 논문에서는 일본 의용소방대의 운영실태, 의용소방대 활성화를 위한 소방청의 추진사항 등에 대해 분석한다.