• 한국농공학회:학술대회논문집
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• 한국농공학회 2002년도 학술발표회 발표논문집
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• pp.57-60
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• 2002

Developed power off automatic stanch that keep floodgate upper stream water level changelessly for curtailment of operation by manpower and electricity lead-in equal early investment expense that manual system floodgate and electric motion floodgate have. Human strength does not need in floodgate operation as that power off automatic floodgate open and close floodgate automatically by buoyancy and also, another thing power does not need. Before establish floodgate, effect that get to waterway when behaves repair calculation of correct waterway and decide size of floodgate accordingly and establish floodgate must do examination analysis fussily. power off automatic floodgate night soil that get between countermeasure is the urgentest low-down in reply because can do mistake in operation by phenomenon and so on about water resources by different plate shape change through a model experiment examine closely need to.

• 한국지진공학회논문집
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• 제13권5호
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• pp.31-40
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• 2009

본 논문에서는 현장 강제진동실험에서 측정된 수문의 고유진동수를 수치 시뮬레이션을 통해 얻은 대응 값과 비교하는 과정을 반복하여 수문의 부가질량을 보정하는 방법을 설명하였다. 보정된 부가질량이 수문의 내진성능평가에 미치는 영향을 평가하기 위하여 현장 강제진동실험이 행해진 수문을 대상으로 지진해석을 수행하였으며, Westergaard 부가질량을 사용한 수문의 수치모형이 실측 자료로 보정된 부가질량을 사용한 경우보다 최대 지진력과 최대 변위에서 상대적으로 큰 값을 산출하는 결과를 보여주었다.

• 한국기계가공학회지
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• 제20권3호
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• pp.107-112
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• 2021

Pressure, which is a dynamic characteristic of a floodgate, is predicted using an FSI analysis method. A fluid analysis model and a hydrology analysis model were used as analysis models. As a result of the analysis, we found that a warped model has smaller acceleration than a square model. Additionally, this numerical analysis technique was applied to the actual hydrology, and the analysis results were compared with the results of the vibration tests. As a result, we confirmed that there is a small difference between the results of the vibration tests and the results of the FSI analysis. Through this analysis, the applicability and reliability of the FSI analysis method were verified. We concluded that the pressure of a floodgate can be measured through an FSI analysis method.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2005년도 춘계 학술발표회 논문집
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• pp.1602-1610
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• 2005

In this study was investigated and analyzed of damage characteristics for infrastructures by typhoon that have been many occur. The objective Structures were the road and hydraulic structure. The road structure was included the cut-slopes, retaining walls and bridges. The hydraulic structure is divided with the dike, small-scale dam, reservoir and floodgate. The analysis result of the bridge damage cause is river bottom height increase and passage ability decrease. The principal damage reasons of the cut-slope structure are weakening the ground due to the localized torrential downpour and drainage defective. Also, the principal damage reasons of the small-scale dam, reservoir, dike and the floodgate are continuous collapse of dike beside the floodgate.And we divided a typhoon damage occurrence cause with artificial and natural. As the result of analysis, the many damage occurrence cause will be removed by system improvement and technical development.

• 대한토목학회논문집
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• 제29권6A호
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• pp.607-616
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• 2009

본 논문에서는 댐 수문의 지진해석과 안전성 평가에 필수적인 지진시 동수압을 정확하고 효율적으로 산정하는 방법을 제시하였다. 제안된 방법은 비교적 간단한 현장 진동계측과 유한요소해석을 통하여 동수압과 등가인 부가질량을 계산하는 방법으로 정확성과 아울러 실용성을 고려하여 개발되어 실제 수문의 내진성능평가에 적용이 가능하다.

• 산업기술연구
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• 제30권B호
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• pp.83-89
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• 2010

Generally, the accuracy of the prediction of flood elevation is difficult to identify due to the sedimentation on a river bed, earth and sand being moved by flow, and localized torrential downpours caused by climate change. It is also because of natural and artificial influences on rivers. To predict river floodings successfully, more precise and reliable flood elevation prediction system is needed, in which the concentration time of downstream is numerically interpreted through analyzing and utilizing the watermark of the upper region. Therefore, this research analyzed the prediction methods of the changes in water levels, which use the watermarks of the upper region. The watermarks which impacts the spot being predicted of flood was selected through floodgate analysis and correlation analysis. With the selected watermarks, a statistically reliable regression equation was yielded.

• 한국해양환경ㆍ에너지학회지
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• 제2권2호
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• pp.49-59
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• 1999

낙동강 하구역은 담수와 해수가 만나 복잡한 순환양상을 보이는 지역이다 낙동강 하구역은 하구둑의 건설로 혼합체계와 순환양상이 많이 변하였다. 논 연구에서는 낙동강 하구둑 하류부의 해양 물리 환경 변화론 하구둑의 수문개폐에 초점을 맞춰 분석하였다. 관측과 분석에는 3가지의 경우로 나누었다. 1. 평상시 (조시에 따라 수문 개폐) 2. 홍수시 (수문 완전 개방) 3. 갈수시(수문이 완전히 닫혔을시).

• 한국산업융합학회 논문집
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• 제11권1호
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• pp.11-18
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• 2008

After execute quantitative analysis that choose station and compose floodgate quality of water net and use floodgate data and quality of water data analysis target Sign of the cock as 1 dimension access for Non-point pollution source pollution and estimate of Gaeuncheon's at Kyongsangbukdo report to the Throne in this research, presented parameter conclusion notation model (AGNPS) in real condition of our agricultural area through comparison with spot value and result is as following in reply. With result observation and analysis result of the AGNPS model the comparison which it will pay from the hazard which it analyzes 2005, the rainfall thought which is used in the analysis to select 8 heavy rain thoughts 2005 July - is data until of September. Actual amount of rainfall 6.0~195.0 mm one time the antecedent precipitation showed API5 case 0.0~507.0mm and were observed peak flows (Qpeak) each from the P-1 $0.026m^3/sec{\sim}9.265m^3/sec$, from the P-2 $0.010m^3/sec-2.747m^3/sec$ and from the P-3c $0.064m^3/sec-13.482m^3/sec$ to show. Also amendment AMC condition it will be cool and it uses and the AGNPS model conference the result which it occurs, analysis and regression analysis of actual flow for as 0.992 very the possibility of getting the result which is good there was a decisive coefficient which is cool. But the gun is (T-P) with the total nitrogen (T-N) decisive coefficient each as 0.794 and 0.849 the presumption which is reliability generally will pay and with the fact that it will be the possibility of getting it is judged.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 추계 학술발표회
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• pp.820-826
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• 2008

Differ number of seismograph to the composition dam by recently frequent earthquake and analyzed responsiveness. Interest for dam inner place by increase of something wrong flood and inside and outside of the country earthquake appearance according to unusual change of weather is risen, on important urea in dam safety floodgate school register by structural safety divide can. Therefore, by PMP (PMF) of dam and increase of domestic earthquake occurrence, need research about earthquake resistant nature ability estimation of water resources facilities. Because responsiveness analysis applies number 0.154 ~ 0.25 g of seismograph, seismic wave that use in analysis is being suitable in dynamic analysis of construction such as Rockfill dam from representative chapter cycle faction and recommend in domestic internal examination design workbook, and use results applied much Hachinohe wave onions in van abroad.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 추계학술발표논문집
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• pp.877-880
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• 2009

수문의 개폐는 모터에 의한 회전이 권양기에서 감속 되고 증폭된 회전력이 랙에 의하여 직선 운동으로 바뀌어 회전 방향에 따라 상하로 움직여 열리고 닫히게 된다. 권양기는 상부 모터, 감속기, 메인 감속 장치, 동력 차단장치, 좌측 동력변환장치, 우측 동력 변환장치로 구성된다. 본 논문에서는 핀잭식 권양기의 최적 설계를 위하여 보조기어와 메인기어 트레인의 구조 해석, 진동해석 및 설계와 하중에 버틸 수 있는 상부구조물 몸체의 최적 설계를 통하여 설계변수를 확립한다.