초록

- 해수면 상승으로 인한 하천 및 하구를 따라 확산 및 침투하는 염수를 억제하여 담수 수자원을 확보하고자 하는 기술을 제안
- 하천변 일부지역에 파일링을 통해 하류방향으로의 유속을 증가시켜 염수확장을 억제
- 파일링 상류 구간의 하천수위가 증가되어 주변 지하수위의 상승이 유발되고 지하염수침투를 억제
- 본 연구를 통해 제안하는 기술을 해석하기 위한 계산모듈 및 전후 처리기 개발

(출처 : 요약서 3p)

Abstract ▼

□ Purpose & Contents
● The sea level rise is expected to be accelerated and the salt wedge expansion in rivers and estuaries is observed. In underground, the salt water intrusion is also accelerated in company with groundwater level drawdown.
● A little change of salinity has great influence o

□ Purpose & Contents
● The sea level rise is expected to be accelerated and the salt wedge expansion in rivers and estuaries is observed. In underground, the salt water intrusion is also accelerated in company with groundwater level drawdown.
● A little change of salinity has great influence on the ecological system and causes local economic damage acting as a pollutant.
● Although the construction of dams or weirs may be proposed as prevention measures for the expansion of salt wedge, it is considered not to be timeand cost-efficient and not to be positive on ecological system.
● Although the salt water pumping, freshwater injection, underground dam, etc. are proposed as prevention measures for salt water intrusion into underground aquifer, the cost and effectiveness of the measures are being questioned.
● Therefore, this research proposes cost efficient and easily maintainable green technology for sustainable water resources as a countermeasure of future sea level rise and develops the numerical program for the analysis and estimation of the effectiveness.
● It is expected that the construction of piles along the right and left bank of a river causes the flow velocity within the piling area decrease and the water surface of upstream reach from the piling area increase due to the drag force of piles. In contrast, the flow velocity around the middle of channel will increase. As a result, the positive effect of downstream increase of flowvelocity on the upward expansion of salinity can be obtained.
● Therefore, two dimensional flow analysis program reflecting the effect of drag force of piles will be developed in this research, in order to predict and estimate the change of flow characteristics depending on piling.
● Groundwater level in aquifer adjacent to the upstream reach from the piling area is also expected to increase as a consequence of increase of water surface of a river. The increase of energy head in underground aquifer can play an important role as prevention of salt water intrusion and securement and preservation of sustainable freshwater resources.
● Therefore, groundwater analysis program predicting and estimating the effect of flow characteristics change of a river as a result of piling on the undergroundaquifer will be developed in this research.
● At last, developed programs will be applied to various conditions of piles, and green technology for sustainable water resources as a countermeasure of future sea level rise will be estimated and verified.

□ Results
● The main outcome of this research is as the following:
▷ program for the analysis of flow characteristics change of surface water considering the drag force of piles
▷ program for the analysis of characteristics change of groundwater depending on the change of flow characteristics of a river
▷ estimation and verification of green technology for sustainable water resources as a countermeasure of future sea level rise
● The minimum performance of this research is proposed as the following:
▷ 1 article published to SCI(E) journal
▷ 2 article published to domestic journal
▷ 3 software

□ Expected Contribution
● This research which estimates the interaction between surface water and groundwater reacted to sea level rise in rivers and estuaries guaranteesoriginality and challenge, making an first attempt at home and abroad.
● The standard of national software development technology can be improved to the next level, the position and role as the precursor of countermeasure of sea level rise can be obtained, and the cultivation of future fundamental technology can be warranted through this research.
● The outcome of this research can be applied to create another newly developed business and research such as the environmental effects evaluation due to sea level rise with cooperation and technical assistance in advanced, developing and underdeveloped countries.
● This research can be utilized for multidisciplinary and academic-industrial cooperative fusion and convergence research between areas of river, groundwater, environment, ecology, agriculture, fisheries, etc. for thecountermeasure of climate change.
● It is expected that the outcome of this research should facilitate entering the global market and pioneering new markets because the attention to the environmental and ecological problems due to the climate change is highly engaged around the world.

(출처 : SUMMARY 6p)

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 요약서 ... 3
• 요약문 ... 4
• SUMMARY ... 6
• CONTENTS ... 8
• 목차 ... 8
• 제1장. 연구개발과제의 개요 ... 9
• 1. 연구개발 목적 ... 9
• 2. 연구개발의 필요성 ... 9
• 3. 연구개발 범위 ... 10
• 제2장. 국내외 기술 개발 현황 ... 13
• 제3장. 연구수행내용 및 성과 ... 23
• 1. 연구개발 추진 전략, 체계 및 일정 ... 23
• 2. pile 항력을 고려한 하천 흐름 특성변화 해석 프로그램 개발 ... 25
• 3. piling을 통한 하천 흐름 특성변화에 따른 대수층에서의 지하수 특성변화 해석을 위한 프로그램 ... 31
• 4. 하구 및 하천 양안에서 piling을 통한 해수면 상승 대비 염수확산 방지 및 담수 수자원 확보 기술평가 및 검증 ... 34
• 5. GUI 개발 ... 49
• 6. 연구개발성과 ... 69
• 7. 연구성과의 차별성, 한계 및 활용 가능성 ... 70
• 제4장. 목표 달성도 및 관련 분야 기여도 ... 71
• 1. 목표 달성도 ... 71
• 2. 관련 분야 기여도 ... 71
• 3. 목표 미달성 시 원인(사유) 및 차후대책(후속연구의 필요성 등) ... 72
• 제5장. 연구개발성과의 활용계획 ... 73
• 제6장. 연구 과정에서 수집한 해외 과학기술 정보 ... 75
• 1. 3차원 CFD 해석 GUI 기술 현황 조사 ... 75
• 제7장. 연구개발성과의 보안등급 ... 86
• 제8장. 국가과학기술종합정보시스템에 등록한 연구시설·장비 현황 ... 86
• 제9장. 연구개발과제 수행에 따른 연구실 등의 안전 조치 이행 실적 ... 87
• 제10장. 연구개발과제의 대표적 연구 실적 ... 88
• 제11장. 기타 사항 ... 88
• 제12장. 참고 문헌 ... 89
• 끝페이지 ... 91