• 한국재난정보학회 논문집
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• 제9권4호
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• pp.462-468
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• 2013

제방 월류방지 대체공법으로 전도식, 부력식 홍수방지벽을 국내 외에서 개발하는 실정이다. 그러나, 사전점검 불가 및 유지관리 문제점이 있어 본 연구에서는 국내 외 최초로 경량 재질이면서 강도가 우수한 유리섬유복합소재를 이용한 승하강식 홍수방지 벽체구조물을 연구 개발하였다. 개발된 홍수방지 벽체구조물은 수치해석을 통해 구조적 안정성과 함께 현장 적용성을 제시하여 공사비를 약 87%~95%로 감소시키고 벽체구조물 내부에 고무 지수부재를 설치하여 차수성이 확보되는 것을 확인하였다.

• 대한토목학회논문집
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• 제36권1호
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• pp.135-141
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• 2016

본 연구의 목적은 소하천유역의 홍수와 가뭄 예방을 목적으로 설치하는 저류조에 대하여 비용 편익분석을 통해 경제적 타당성을 분석하는데 있다. 소하천유역의 홍수예방이 가능한 저류조 용량에 따른 설치비용을 도출하고, 저류조 설치를 통해 도출될 수 있는 편익요소인 피해금액 및 복구금액, 가뭄예방으로 인한 요소별 편익비용을 적용하여 비용 편익분석을 실시하였다. 이는 홍수와 가뭄을 동시에 예방할 수 있는 다목적 저류조 설치의 타당성을 제시하는 기초자료로 활용할 수 있으며, 세부 연구결과로 자연재해의 피해금액 예측 등 다방면으로 활용할 수 있을 것으로 기대된다.

• 한국환경복원기술학회지
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• 제10권1호
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• pp.1-8
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• 2007

The Anyang River which located in an urban area near Seoul had been managed focusing on supplying home and industrial water and preventing floods, coping with rapid industrialization and urbanization. Consequently, it was changed into a deadly river during 25 years. Its channel was straightened by concrete and water quality deteriorated to BOD 190mg/l. In addition, water quantity has been rapidly decreased and has been drying up. Also, as the river ecosystem, landscape, water-friendly function, and so forth were seriously deteriorated, people turn away from the urban river. From 2001, the master plan under the 10-year has been actively carried out centering on the preceding items, which are healthy river in which fishes inhabit, safe river free from floods and droughts, and pleasant river where citizens visit. As a result, its water quality was remarkably improved by BOD 5mg/l in 2005 and some upper zones were improved enough to allow people to swim. Moreover, various animals including fish and birds gather around the river. Now, the 'Anyang River Restoration Project' is recognized as the first comprehensive and systematic nature-friendly urban river improvement in Korea.

• International Journal of Contents
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• 제13권4호
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• pp.23-28
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• 2017

Of the total economic loss caused by disasters, 40% are due to floods and floods have a severe impact on human health and life. So, it is important to monitor the water level of a river and to issue a flood warning during unfavorable circumstances. In this paper, we propose a modified error function to improve a hydrological modeling using a multi-layer perceptron (MLP) neural network. When MLP's are trained to minimize the conventional mean-squared error function, the prediction performance is poor because MLP's are highly tunned to training data. Our goal is achieved by preventing overspecialization to training data, which is the main reason for performance degradation for rare or test data. Based on the modified error function, an MLP is trained to predict the water level with rainfall data at upper reaches. Through simulations to predict the water level of Nakdong River near a UNESCO World Heritage Site "Hahoe Village," we verified that the prediction performance of MLP with the modified error function is superior to that with the conventional mean-squared error function, especially maximum error of 40.85cm vs. 55.51cm.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.316-317
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• 2018

Thailand and other Southeast Asian countries are experiencing frequent floods due to heavy rainfall and are using the Flood Rapid Defense System(FRDS) for an emergency. However, they are expensive and has a wedge-shaped panel suitable for the dirt bank, making it unsuitable for applications in Southeast Asia, a relatively underdeveloped country. In this study, the direction of development of FRDS was derived through domestic and overseas case analysis. Future studies should be carried out to develop the actual FRDS according to the development directions presented here. These results will be effective in preventing flooding of buildings in Southeast Asia as well as in Korea.

• 건축역사연구
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• 제31권2호
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• pp.51-65
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• 2022

Seoju is one of the nine weeks of the ancient period, and according to literature records, the construction of Seojuseong Fortress has a long history of 2573. This is the land of Oseongtong-gu, a political and military hub, and flood disasters have frequently led to frequent reconstruction of fortresses. In particular, it is also an important place to show that the function of the fortress is defensive and has a function of preventing floods. This study analyzed the shape of Seojuseong Fortress and the characteristics of urban spaces in the Myeongcheong period through excavation data and literature data.

• 한국측량학회지
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• 제25권6_2호
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• pp.599-611
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• 2007

매년 막대한 피해를 초래하는 자연재해 중 집중호우로 인한 홍수피해는 이를 근본적으로 대처할 수 있는 방안은 없으나, 보다 구체적인 홍수방재대책에 대한 많은 연구가 진행되어 왔다. 그러나 홍수방재사업의 진행시 환경파괴에 대한 환경단체의 반대, 또는 치수사업의 경제성 문제로 논란이 끊이지 않고 있다. 막대한 국가예산이 투입되는 홍수방재대책에서의 최적지 선정은 홍수방재대책의 성공여부를 가늠하는 핵심적인 요소이다. 따라서 본 연구에서는 1차원 수문해석 프로그램인 HEC-RAS와 GIS를 연계하여 예상침수지역을 추출한 후 이를 홍수방재사업의 경제성 분석에 활용하였다. 또한 홍수방재사업의 경제성 분석에 있어 $\ulcorner$치수사업 경제성분석 개선방안 연구$\lrcorner$의 방법을 보완한 $\ulcorner$치수사업 경제성분석 방법 연구-다차원 홍수피해 산정방법-$\lrcorner$을 적용하여 경제성 분석을 실시함으로써 방재사업의 우선순위 선정 시 필요한 기초데이터를 제공하는데 그 목적이 있다.

• 한국수자원학회논문집
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• 제48권12호
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• pp.1037-1049
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• 2015

북한의 대규모 자연재난은 홍수와 태풍 그리고 집중호우로 인한 수해피해가 대부분이며 이러한 피해는 1990년대 중반부터 해마다 북한의 경제난을 악화시키고 있다. 북한 당국도 수해피해의 심각성을 인식하여, 1990년대 말부터 하천정리, 농경지 복구, 토지정리사업, 조림사업 등을 실시하였으나, 계속되는 수해피해를 막지 못하고 있다. 본 연구는 상습적으로 발생하는 북한의 홍수피해에 대한 위험도를 산정하기 위해 일반적인 위험도 평가과정은 동일하게 유지하되 대외적으로 수문자료 취득이 힘들고 지형자료가 공개되지 않은 미계측지역이라는 유역특성을 반영하여 강우-유출에 대한 모의를 추가적으로 실시하였다. 또한, 위험도 평가는 국제기구(IPCC)의 기준에 따라 홍수에 대한 위험성과 노출성, 취약성 인자들을 선정하여 홍수 위험도를 판단하였다.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2007년도 춘계학술발표회 논문집
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• pp.253-256
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• 2007

Among natural disasters that lead to devastating damage, floods from heavy rains have been causing hundreds of victims and a great loss of their properties every year. Basically, there is no other way to deal with the problem considering it is a kind of natural disaster, but more specific studies for a preventive measure of flood has been in progress so far. However, the controversy over the problem is going on due to the objection of some environmental organizations or some economic reasons. The key important thing is select the most suitable area for a preventive measure of flood where a huge amount of national budget is put into, which is also the factor to judge it would be success or failure, therefore, in this study, it is made to be profitable to decide the priority order in a plan for preventing disasters by drawing more accurate data conveniently from the connection with GIS when you get some information of configuration of the ground and using them into the economic analysis for flood prevention industries.

• Environmental Engineering Research
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• 제16권3호
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• pp.175-183
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• 2011

The climate of the $21^{st}$ century is likely to be significantly different from that of the 20th century because of human-induced climate change. An extreme weather event is defined as a climate phenomenon that has not been observed for the past 30 years and that may have occurred by climate change and climate variability. The abnormal climate change can induce natural disasters such as floods, droughts, typhoons, heavy snow, etc. How will the frequency and intensity of extreme weather events be affected by the global warming change in the $21^{st}$ century? This could be a quite interesting matter of concern to the hydrologists who will forecast the extreme weather events for preventing future natural disasters. In this study, we establish the extreme indices and analyze the trend of extreme weather events using extreme indices estimated from the observed data of 66 stations controlled by the Korea Meteorological Administration (KMA) in Korea. These analyses showed that spatially coherent and statistically significant changes in the extreme events of temperature and rainfall have occurred. Under the global climate change, Korea, unlike in the past, is now being affected by extreme weather events such as heavy rain and abnormal temperatures in addition to changes in climate phenomena.