• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2003년도 추계학술논문발표회 논문집
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• pp.55-72
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• 2003

Dam is a barrier constructed to divert, hold water and raise its level for purpose of water supply, irrigation, power generation, flood control, and recreational facilities, etc. Therefore, there are many inevitable environmental impacts on dam construction. We need some better tools to predict the impacts and mitigate measures before and after dam construction. For this purpose I discussed several feasible suggestions and provisions mainly related to environmental impact assessment.

• Advances in concrete construction
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• 제2권2호
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• pp.125-144
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• 2014

The development in roller compacted concrete (RCC) is replacing the conventionally vibrated concrete (CVC) for faster construction of dam during last three-four decades. Notwithstanding, there have been relatively less works reported on the utilization of RCC in dam constructions, especially the dams having considerable height. Further, the Ghatgar dam was the only dam in the tropical country like India constructed using the technology of RCC until two years back. However, with the completion of 102.4 m high Middle Vaitarana Dam (MVD), owned by Muncipal Corporation of Greater Mumbai (MCGM), India, has become the first largest roller compacted concrete dam. The paper traces step by step aspects of the mix design of RCC in respect of the afore-mentioned project besides the construction aspects; and also, demonstrates as to how 12.15 lacs cubic meter of roller compacted concrete was placed within the record duration of 15.2 months, thus, rendering the MVD as the ninth fastest RCC dam in the world. The paper also discusses the various mix proportioning, quality control, constructional features and instrumentation with respect to the high RCC dam such as Middle Vaitarana.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2004년도 학술발표회
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• pp.134-147
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• 2004

Theses days, there are 3 prerequisites for dam building in Korea: First one is how to build the dam safe and stable from the technical points of view. Second one is how to design and construct the dam environmentally sound with the minimum change of the surrounding area of the dam site. Third one is how to activate the local economy of the surrounding area of the dam site in order to make the dam construction sustainable from the social and economical points of view. As far as technical aspects far dam building, there are hardly any problems in dam design and construction in our country. However, there are a little difficulty according to the location of the dam site. In order to fulfill the second option it is believed that a lot of effort should be made to accomplish the second task not only because that fairly large area shall be inundated with water after impounding but also because that ecological environments shall be changed due to change of water environment. Therefore, thoughtful investigation and assessment of the environmental features of the local regions have to be preceded before starting of the dam building. In order to overcome these difficulties Hantan river dam has been declared as an Eco-dam with 3 strategies and 9 activities plan at the design stage after sufficient consideration of the local identities of these region and coupled national plans for surrounding areas. Finally, Eco-tourism with the several coupled network-wise touristic courses, namely PERTH model, has been proposed after thorough analysis of the local identities by the Jahari window to make local economy being activated. Detailed descriptions for 3 strategies and 9 activities plan for declaration of Eco-dam and proposal of Eco-tourism with the network-wise touristic courses will be mentioned in the main content.

• 한국지반환경공학회 논문집
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• 제16권2호
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• pp.5-13
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• 2015

본 연구에서는 36개의 CFRD에 대한 계측자료(38개 지점)를 통해 댐 축조단계에서 얻어지는 계측자료를 이용하여 담수 후 댐의 정부침하량 및 내부침하량 예측기법을 제안하였다. 전체 데이터에 대한 분석 결과, 댐체의 정부침하량 및 시공 중 최대 내부침하량은 댐체의 높이 및 간극비에 비례하였다. 그러나 내부침하량과 댐 높이에 대한 반대수지 상에서의 선형회귀분석 결과는 간극비에 따른 차이 없이 대단히 유사함을 확인하였다. 또한 CFRD의 시공 중 내부침하량을 통해 정부침하량의 예측이 가능하였으며, 댐체가 조밀할 경우 연직변형계수가 크게 평가됨과 동시에 계곡형상의 영향을 많이 받는 것으로 나타났다. 본 연구결과는 향후 CFRD의 설계, 시공, 장기적 유지관리를 위한 유용한 도구가 될 것으로 사료된다.

• 한국농공학회:학술대회논문집
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• 한국농공학회 1999년도 Proceedings of the 1999 Annual Conference The Korean Society of Agricutural Engineers
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• pp.550-555
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• 1999

yongdam multipurpose is under construction to divert a part fo Geum riverlfow to Mankyung watershed and to supply the domestic water to the Chunju region and produce the hydro-electricity. Generally construction of dam by the method of inther-region water transfer affects the quantity and quality of water inthe down streams and reservoirs. The impact of operation plan of Yondgam dam on the quantity and quality of water in the Guem river and Daechung dam was investigated .It was recommended that the discharge of water transfer from one watershed to another should be minimized as much as possible.

• Steel and Composite Structures
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• 제49권6호
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• pp.701-711
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• 2023

In order to fully reflect variation characteristics of composite concrete dam health state, the monitoring data is applied to diagnose composite concrete dam health state. Composite concrete dam lesion development to wreckage is a precursor, and its health status can be judged. The monitoring data are generally non-linear and unsteady time series, which contain chaotic information that cannot be characterized. Thus, it could generate huge influence for the construction of monitoring models and the formulation of corresponding health diagnostic indicators. This multi-scale diagnosis process is from point to whole. Chaotic characteristics are often contained in the monitoring data. If chaotic characteristics could be extracted for reflecting concrete dam health state and the corresponding diagnostic indicators will be formulated, the theory and method of diagnosing concrete dam health state can be huge improved. Therefore, the chaotic characteristics of monitoring data are considered. And, the extracting method of the chaotic components is studied from monitoring data based on fuzzy dynamic cross-correlation factor method. Finally, a method is proposed for formulating composite concrete dam health state indicators. This method can effectively distinguish chaotic systems from deterministic systems and reflect the health state of concrete dam in service.

• 자원환경지질
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• 제44권6호
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• pp.525-532
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• 2011

지속가능한 지하수 자원의 개발과 관리능력의 수단으로서의 지하댐의 이용과 그 효율성에 관한 분석을 수행하기 위해 완전연동형 지표수-지하수 통합해석 모형인 SWAT-MODFLOW를 쌍천유역에 적용하여 지하댐 건설에 따른 영향평가를 수행하였다. 지하댐 건설 후에는 댐 상류의 지하수위 상승이 일어나며 하류부는 지하수가 감소하는 현상이 나타난다. 이에 따라 지표수-지하수의 상호교환량은 상류에서 더 커지는 것으로 나타났다. 지하댐 건설에 따라 상류부 대수층의 저류량이 증가함으로써 가용한 지하수의 개발량은 그만큼 증가하는 것으로 나타났다. 본 연구를 통해 지하댐의 기능이 대수층의 가용 저류량을 증대시키는 매우 유용한 시설임을 확인할 수 있었고, 통합 수문해석 방법론은 지하댐 건설에 따른 영향 뿐 아니라 설계와 운영을 평가하기 위한 적절한 기법으로 이용될 수 있을 것으로 판단된다.

• 한국농공학회:학술대회논문집
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• 한국농공학회 1998년도 학술발표회 발표논문집
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• pp.41-46
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• 1998

The purpose of the study was changed of Flood Characteristics in Down stream of Keum River by the Keum River Estuary Dam Construction. The water surface slope of Kuem river after the Keum River Estuary Dam construction was steeper then before. The flood control capacity increase after construction. But, Increasing sediment in Kuem river will be decreased flesh reservoir volume for yield irrigation.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 세계 도시지반공학 심포지엄
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• pp.319-334
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• 2009

This paper describes an overview of technology and research of dam and levee in Korea. In order to trace the development of dam and levee construction technology, history of design and construction of them is briefly reviewed, and their statistics including type, number and purpose of those hydraulic structures in Korea are dealt with. Furthermore, current status of research on the mentioned structures is also reviewed based on the papers published in Korean societies such as Korean Society of Civil Engineers and Korean Geotechnical Society. Finally state-of-the-art equipment and technology to investigate the safety conditions, and hence to enhance or rehabilitate their stability and dam and levee systems, respectively, are introduced here.

• 생태와환경
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• 제35권2호통권98호
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• pp.141-144
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• 2002

The construction of river mouth dam has prevented seawater from backwarding to upstream in Kum river estuary since 1990. Field observation on environmental factors, and zooplankton and phytoplankton dynamics have been carried out three times with two month interval in the summer and autumn in 2000 at three selected stations in Kum river estuary. Blockade of seawater flowing backward to upstream caused sharp contrast of zooplankton fauna and phytoplankton flora between upstream and downstream of the river mouth dam. Freshwater cladocerans i.e., Bosmina longisrostris and Daphnia galeata dominated in the upstream, and marine copepods of Acartia omorii and Paracalanus crassirostris occurred abundantly in downstream of the dam. Freshwater diatoms did not distributed in the downstream of the dam except Melosira varians, while marine diatom of Cylidrotheca closterium occurred in benthic waters bath in upstream and downstream of the dam. The construction of the river mouth dam seems to play an ecological role to blockade the input of marine organism into the upstream in Kum river estuary.