• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 가을 학술논문 발표대회
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• pp.189-190
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• 2022

Power plants that produce electricity through thermal power plants mainly store coal in outdoor storage yards. In particular, coal is directly exposed to rainwater during rainfall, including torrential rain. There is no separate drainage facility in the outdoor coal yard, and coal is simply stored on the ground. Accordingly, during rainfall, coal dust flows down by rainwater, and a large amount of rainwater that is not drained overflows the outdoor coal yard, overflowing the surrounding facilities and causing environmental pollution. Therefore, in this study, a drainage system was developed for the rapid drainage of an outdoor coal mine, and the quality of the water was evaluated when rainwater mixed with drainage characteristics and coal dust was discharged through the drainage system.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2018년도 학술발표회
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• pp.485-485
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• 2018

Rainwater harvesting system (RWH) can provide a relief for the household and farmers especially in areas with intense water scarcity during the long lull of rainy season. However, much attention has not been given to this alternative water source in Nigeria. This paper estimates the per capita water demand for 1,950 inhabitants and rainwater potential in Ojonbodu Estate, Oyo State, Nigeria, using data from detailed questionnaires, water consumption calculator software, and 20-year rainfall data. The potential rainwater estimation was based on amount of precipitation, size of catchment and runoff coefficient. Consequently, using estimated values of $39420m^3$ and $6.5114{\times}10^7m^3$ for per capita consumption and potential rainwater respectively, the rainwater harvesting system was designed for rainwater collection, and storage. The harvested rainwater was $450, 000m^3$ with collection efficiency of 69.16 %, which exceeded the household water consumption requirement. Thus, the harvested rainwater was able to meet the estimated water demand of the Ojonbodu Estate households during the period of water scarcity.

• 상하수도학회지
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• 제23권2호
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• pp.223-230
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• 2009

Most urban water management systems are becoming vulnerable to flooding and drought due to the climate change (CC), urbanization and energy shortage. Despite of poor water management circumstances caused by extremely uneven annual rainfall and hilly terrain, traditionally we have made a sound and sustainable life based on our own philosophy and technologies which copes with our rigid environment. In this study a new paradigm of rainwater management is suggested and multipurpose and creative rainwater harvesting and management (RWHM) systems are introduced providing several case studies such as rainfall storage drainage (RSD) system, rainwater infiltration facilities and star city RWHM system. This new RWHM paradigm leads Seoul Metropolitan Government (SMG) in the Republic of Korea to change regulations and politics for the integrated RWHM. Finally, RWHM is expected to improve the safety, efficiency, energy consumption of urban water infrastructure, to reduce urban heat island phenomenon and, furthermore, to contribute in finding solutions for worldwide water issues and to adapt CC.

• 한국물환경학회지
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• 제24권2호
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• pp.221-229
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• 2008

This study revised a model for hydrologically analyzing rainwater harvesting facilities considering their rainfall-runoff properties and the data available. This model has only a few parameters, which can be estimated with rather poor measurements available. The model has a non-linear module for rainfall loss, and the remaining rainfall excess (effective rainfall) is assumed to be inflow to the storage tank. This model has been applied for the rainwater harvesting facilities in Seoul National University, Korea Institute of Construction Technology, and the Daejon World Cup Stadium. As a result, the runoff coefficients estimated were about 0.9 for the building roof as a rainwater collecting surface and about 0.18 for the playground. This result is coincident with that for designing the rainwater harvesting facilities to show the accuracy of model and the simulation results.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.386-389
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• 2013

Under climate change and urbanization, rainwater harvesting (RWH) systems are emerging as an alternative source of water supply because of growing concern about water sustainability. RWH systems can satisfy the various watering needs and provide the environmental benefits of lessening the damages from flood, drought, and runoff. The economic success of a RWH system is vitally concerned with the determination of the design capacity of storage tank to be built in the system. The design capacity is determined by the factors of average annual rainfall, period of water scarcity, and water price during the whole life-cycles. Despite the high uncertainties inherent in these factors, the current engineering design of RWH system construction often assumes that storage tanks should be built all at once. This assumption implicitly ignores the managerial flexibility in responds to the future as new information comes out-the right to build storage tanks stage by stage depending on the evolution of demand. This study evaluates the value of a multistage storage tank construction using a real option approach. A case study involving a typical RWH system construction in Jeonju, the Republic of Korea is conducted. The managerial flexibility obtained from the real option perspective allows engineers to develop investment strategies to better cope with the issue of water sustainability.

• KIEAE Journal
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• 제6권3호
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• pp.3-10
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• 2006

As environmental problems and water-shortage phenomenon become a global issue, many states look for the effective method to use water resources. So, decentralized rainwater management is recognized as a new water management system that rainwater can be infiltrated and used on-site. But it is little difficult to build a park, lake, and forest for evaporating rainwater in city because the land price of city is very high. In order to build an excellent infiltration system for a dwelling and a park in Korea, KICT has developed Linear infiltration system. This infiltration system is consist of first flush treatment, storage and infiltration, overflow control system. These elements are connected closely and working as a combined system. A storm sewer can be changed by the linear infiltration system. This study is to make design guideline using Linear infiltration system in apartment house. So ATV-DVWK-M13, FLL and present condition of Korean rainwater system were analyzed and the guidelines direction were set up. Through this study, a foundation is prepared to build the decentralized rainwater management of apartment house.

• 한국건축시공학회지
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• 제24권2호
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• pp.227-238
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• 2024

본 연구에서는 최근 이상기후로 인해 양극화된 기후 패턴으로 인한 침수 피해가 증가하고 있으며, 그 해결책이 빗물 침투저류블록이라고 설명하고 있다. 또한, 기존 프로그램의 한계점으로 드론 기술과 결합된 새로운 기능이 필요함을 제안하며, 저류조 기능을 가진 빗물침투저류블록의 최적 설치 장소 선정을 목표로 하는 침수·범람 시뮬레이션 기술 개발에 대한 실험 및 평가를 진행한다. 실제 빗물침투저류블록이 실시공된 지역을 대상으로 평가를 진행하였으며, DEM과 DSM을 통한 기존 프로그램과의 비교, 침수·범람 시뮬레이션 프로그램의 실현장 적용성 검토의 2개 항목을 통해 평가를 진행하였으며, 그 결과, 침수·범람 시뮬레이션 프로그램의 실무에 적용함으로써 빗물침투저류블록의 설치 시 최적지 선정을 위한 의사결정 도구로 활용할 수 있다는 것을 확인하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.411-412
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• 2023

The purpose of this research and development is to develop a structure module that improves the efficiency and constructability of the layout structure as well as the design development of rainwater permeable storage tank blocks using inorganic binders and aggregates with the aim of reducing greenhouse gas (CO₂) with eco-friendly materials. In addition, for the efficient response to flooding of the developed permeable storage structure, we present a technical solution for combining drone mapping technology and flood monitoring technology that can analyze topographical factors in detail.

• 한국수자원학회논문집
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• 제53권6호
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• pp.451-461
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• 2020

급격한 도시화로 인한 도시홍수가 최근 들어 자주 발생하고 있다. 본 연구에서는 도시홍수를 방어하기 위해 국내최초로 건설중인 신월 빗물저류배수시설을 대상으로 수리모형실험을 실시하였다. 총 55가지 시나리오에 대한 실험을 실시하였는데 그 중 19가지 시나리오에서 월류가 발생하였다. 또한 월류가 발생한 시나리오에 대한 비디오 분석결과, 불규칙 단파가 이동하면서 시설 내 압축공기를 배기시키는 과정에 월류가 발생하는 것으로 분석되었다. 본 연구 결과를 바탕으로 향후 연속강우에 대한 신월 빗물저류배수시설에 대한 안정적 운영을 위해서 완전배수 또는 만관상태를 유지하는 것이 유리할 것으로 판단되고 유입유량의 크기, 월류, 불규칙 단파간의 상관관계에 대한 추가 연구가 필요할 것으로 판단된다.

• 한국건축시공학회지
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• 제22권6호
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• pp.607-618
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• 2022

본 연구는 황토와 무기질 결합재의 수화반응을 이용하여 빗물저류조용 황토투수블록을 개발한 연구로서 제조과정의 산업부산물인 고로슬래그 미분말과 페로니켈슬래그 순환자원을 골재로 활용하고 황토투수블럭을 제작하여 물성분석을 하였다. 도심지 내 투수성 포장을 확대하고 공극이 막혀 투수기능 상실을 방지하여 우수유출저감용 빗물관리시설에 사용하기 위한 것으로써 도시지역에서 열섬현상과 도심 집중강우에 따른 도로침수 포장체 파손 등이 대한 방안으로 활용이 가능하다.