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송성호,명우호,이규상,Song, Sung-Ho,Myoung, Woo-Ho,Lee, Gyu-Sang 한국지하수토양환경학회 2017 지하수토양환경 Vol.22 No.5
Accurate assessment of agricultural groundwater usage is an essential task to cope with drought that occurs irregularly in time and location. In this study, the agricultural groundwater usage was calculated in nationwide public wells (1,386 bedrock wells) during 5-year period (2010-2014) by using electric power consumption and well specification data. National average of agricultural groundwater usage per each well was estimated as $66.2m^3/day$, corresponding to 21.6% of total permitted volume of groundwater in each well. Chungcheong Nam-do had the highest usage with 38-55.6%. The value increased to 58.1% when the total permitted volume was based upon the supply standard against drought, and the value reached 100% in Chungcheong Nam-do. In Ganghwa distirct that suffered from severe drought in recent years, the average groundwater usage was 61.4%. In 2014, when the drought was the most severe with 45% precipitation of the average annual rainfall, the nationwide usage was turned out to be 25.6%, indicating about 4% higher than average agricultural groundwater usage 21.6%. Therefore, the quantitative assessment of groundwater usage in this study signifies that adequate use of groundwater is crucial to cope with agricultural drought.
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용환호,송성호,명우호,안중기,홍순욱,Yong, Hwan-Ho,Song, Sung-Ho,Myoung, Woo-Ho,An, Jung-Gi,Hong, Soon-Wook 한국지하수토양환경학회 2017 지하수토양환경 Vol.22 No.3
The increasing frequency of droughts has been increasing the necessity of utilizing subsurface dams as reliable groundwater resources in areas where it is difficult to supply adequate agricultural water using only surface water. In this study, we analyzed the current status and actual conditions of five agricultural subsurface dams as well as the effect of obtaining additional groundwater from subsurface dams operated as one aspect of the sustainable integrated water management system. Based on the construction methods and functions of each subsurface dam, the five subsurface dams are classified into three types such as those that derive water from rivers, those that prevent seawater intrusion, and those that link to a main irrigation canal. The classification is based on various conditions including topography, reservoir location, irrigation facilities, and river and alluvial deposit distributions. Agricultural groundwater upstream of subsurface dams is obtained from four to five radial collector wells. From the study, the total amount of groundwater recovered from the subsurface dam is turned out to be about 29~44% of the total irrigation water demand, which is higher than that of general agricultural groundwater of about 4.6%.
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전종욱(Jeon Jong-Ug),명우호(Myoung Woo-Ho),김영득(Kim Young-Deug) 한국지열·수열에너지학회 2012 한국지열에너지학회논문집 Vol.8 No.2
In many cases, geothemal wells will not be opened up a geothermal reservoir under such conditions that an extraction of geothermal energy is economically viable without any further measures. Geothermal wells often have to be stimulated, in order to increase productivity. For the non-volcanic area, such as Korea, the hydraulic stimulation is necessary to complete geothermal power plant. The analysis of induced seismic event showed that the thermal resource might have a much wider extent and a much higher generation potential than previously assumed. In order to record compressional and shear waves emitted during fracture stimulation, three-component geophones are placed in a seismometer. The recorded data from one seismometer is the convolution of the source magnitude, the transmission media, and the sensitivity of the instrument.
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장찬동 ( Chan Dong Chang ),명우호 ( Woo Ho Myoung ),이태종 ( Tae Jong Lee ) 대한지질공학회 2008 지질공학 Vol.18 No.2
점토함량에 따른 미고결 이암의 시간 의존적 변형을 비교하기 위해 측방변형이 구속된 상태에서의 일축압밀시험을 수행하였다. 미고결 이암의 변형은 응력의 증가에 따른 즉각적인 변형과 일정한 응력 하의 크리프 변형으로 구분되었다. 응력 증가분이 동일한 경우에 시간 의존적 변형은 거의 일정한 크기로 발생하였으며 응력 증가분이 증가할수록 크리프변형의 크기도 증가하여 선형점성변형의 특성을 보였다. 점토함량이 증가함에 따라 시간 의존적 변형은 증가하는 경향을 보여 점토가 이암의 시간 의존적 변형 발생에 중요한 역할을 하는 것으로 사료된다. 크리프 변형은 시간에 따라 지수함수 형태를 보여 크립 모델 중 하나인 power-law 모델로 잘 예측될 수 있었다. We conducted uniaxial consolidation tests in mudstone samples with different clay content, in order to investigate time-dependent deformation and its characteristics. A significant amount of time-dependent strain was observed at a constant stress level immediately after a jump of stress was applied. For a given mudstone, the amount of time-dependent deformation was nearly proportional to the increment of stress, suggesting a linear viscous rheology. The amount of time-dependent strain increases with clay content, implying that clay plays an important role in creep of the unconsolidated mudstone. A power-law model was suitably applied to our results, suggesting that a short-term prediction of time-dependent deformation of the mudstone is tentatively feasible.
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인문⋅사회적 요소를 고려한 지하댐 우선순위 선정 방안 연구: 강원도 영동지역을 대상으로
최정렬(Jung-Ryel Choi),정진우(Jinwoo Jeong),명우호(Woo-Ho Myoung),우대원(Dae-Won Woo),송인재(In-Jae Song),김병식(Byung-sik Kim) 한국방재학회 2022 한국방재학회논문집 Vol.22 No.5
강원도 영동지역은 태백산맥 동쪽에 위치하여 하천 연장이 짧고 하천의 규모가 크지 않아 수자원의 안정적인 관리가 어려운특성이 있으며, 지속적인 수자원 부족 현상으로 제한급수 등 피해를 받고 있다. 용수 부족으로 인한 주민 피해를 해결을위해서는 댐 및 저수지 등 구조적 대책이 필요하나 비용 및 효율을 고려하였을 때 지표수와 연계한 지하수의 개발 및 이용이가장 합리적인 대안으로 나타났다. 한편 동해안 상류의 경우 환경적 요인 및 주민 반발 등으로 기존 댐 설치 계획 등도취소된 바 있으며, 대형 저수지에서 생활용수와 농업용수를 함께 공급함에 따라 상하류간 사회적 갈등이 지속적으로 이루어지고있어 이를 고려한 대안 선정이 필요한 상황이다. 이에 따라 본 연구에서는 동해안 지역의 인문⋅사회적 특성을 분석하여지하댐 필요지역을 도출하였으며, 속초시(쌍천댐)과 고성군(북천) 순으로 우선순위가 높은 것으로 나타났다. 본 연구를 통해 도출된 지하댐 설치 우선 순위 도출 결과는 동해안 지역 지하댐 신규 설치 사업시 기초자료로 활용될 수 있을 것으로 판단되며, 추후 사회적 갈등이 있는 타 지역의 수자원 공급 인프라 확충 사업시 우선순위 선정을 위한 합리적 대안으로 활용 가능할것으로 판단된다. Yeongdong, Gangwon-do, is located in the east of the Taebaek Mountains, hindering the stable management of water resources and suffering from limited water supply due to the continuous shortage of water resources. To solve the damage to residents due to the lack of water, the development and use of groundwater linked to surface water were found to be the most reasonable alternative. Moreover, as conflicts continue to occur due to environmental and social factors, it is necessary to select an alternative considering this. In this study, the humanities and social characteristics of the East Coast region were analyzed, and the areas and priorities required for the underground dam were presented. As a result of the analysis, the priority was high in the order of sockcho-si (ssangcheon) and gooseong-gun (buckcheon). The results of this study can be used as basic data when installing a new underground dam in the east coast area. Additionally, they can serve as a rational methodology for selecting priorities when expanding the water supply infrastructure in other regions with social conflicts.
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