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제주도 동부지역 염지하수 관정의 수리지질학적 특성

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Author(s)
오승태
Issued Date
2011
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000005607
Abstract
For the saline groundwater wells of Namweon, Pyoseon, Seongsan, Gujwa and Jocheon basins in the eastern coastal area of Jeju Island, their hydrogeological characteristics were investigated, using the characteristics of groundwater reserve by the data of vertical logging of electrical conductivity and by those of underground geology, together with the results of hydraulic parameters calculated by the tidal response technique.
The wells in this study area showed that low saline groundwater by mixing of the fresh groundwater inflowed from inland with seawater was distributed in the upper part and saline groundwater without mixing of fresh groundwater and seawater was distributed in the lower part. The saline groundwater can be reserved in the clinker layer and crushing joint derived from the compact Aa lava, the pillow lava layer and the hyaloclastite breccia layer founded in the bottom of wells.
The hydraulic diffusivity (T/S) values calculated by applying the groundwater level data for these wells and tidal level data in the eastern area of Jeju Island, were in the range of 2.33×107 m2d-1∼4.56×107 m2d-1. The transmissivity (T) values were in the range of 232,558∼13,667,426 m2d-1 and 233∼45,600 m2d-1 with regard to unconfined one and an confined one, respectively, and the latter values are similar to those (731∼44,100 m2d-1) reported in this area earlier.
In addition, it was considered that the aquifer type in this study area was similar to a leaky aquifer (showing a severe leaky phenomenon) or a semi-confined one rather than a complete confined one, based on the geological characteristics such as vertical joint and crushing plane.
Alternative Title
Hydrogeological Characteristics of Saline Groundwater Wells in the Eastern Area of Jeju Island
Affiliation
제주대학교
Department
산업대학원 건설환경공학과
Advisor
감상규
Awarded Date
2011. 8
Table Of Contents
Ⅰ. 서론 1
Ⅱ. 이론적 고찰 4
1. 해안지역에서의 염지하수 부존원리 4
2. 제주도의 수문지질단위 분류 6
3. 지하수 대수층의 분류 8
4. 수리지질특성 인자 10
5. 지하수유동 12
6. 조석반응 분석법 이론 17
Ⅲ. 연구방법 19
1. 염지하수 관정의 공간분포 분석 19
2. 지하지질 및 전기전도도의 수직검층 분석 21
3. 조석반응 분석법(Tidal response technique) 23
Ⅳ. 결과 및 고찰 24
1. 제주도 동부지역 염지하수 관정의 개발․이용 특성 및 공간 분포특성 24
2. 제주도 동부지역 염지하수 관정의 지표 및 지하지질 특성 28
3. 제주도 동부지역 염지하수 관정의 전기전도도 수직분포 및 지하수 부존특성 36
1) 전기전도도 수직분포 특성 36
2) 수역별 지하수 부존특성 43
4. 제주도 동부지역 염지하수관정의 수리인자 특성 46
Ⅴ. 결론 54
Ⅵ. 참고문헌 55
Degree
Master
Publisher
제주대학교 산업대학원
Citation
오승태. (2011). 제주도 동부지역 염지하수 관정의 수리지질학적 특성
Type
Dissertation
Appears in Collections:
Graduate School of Industry > Environmental Engineering
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