한국지구물리탐사학회:학술대회논문집
- 한국지구물리탐사학회 2007년도 공동학술대회 논문집
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- Pages.107-112
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- 2007
물리탐사 결과 복합해석을 통한 방조제 제체 정밀안전진단 사례
Case History for Safe Diagnosis of Embankment Dike using Composite Analysis of Various Geophysical surveys
-
송성호
(한국농촌공사 농어촌연구원) ;
- 성백욱 (한국농촌공사 농어촌연구원) ;
- 김영규 (한국농촌공사 농어촌연구원) ;
- 강미경 (한국농촌공사 농어촌연구원) ;
-
이규상
(한국농촌공사 농어촌연구원) ;
- 김양빈 (한국농촌공사 농어촌연구원)
-
Song, Sung-Ho
(Rural Research Institute, KRC) ;
- Seong, Baek-Uk (Rural Research Institute, KRC) ;
- Kim, Young-Gyu (Rural Research Institute, KRC) ;
- Kang, Mi-Kyung (Rural Research Institute, KRC) ;
-
Lee, Gyu-Sang
(Rural Research Institute, KRC) ;
- Kim, Yang-Bin (Rural Research Institute, KRC)
- 발행 : 2007.06.07
초록
To establish the reinforce region and technique through the embankment dike after identifying the region of seawater inflow, we carried out small-loop electromagnetic (EM) survey, electrical resistivity survey and refraction seismic method. We also analyzed the distribution of electrical conductivity in reservoir with depth every two month and monitored water level variations with tidal variation in four observation wells located at seaside and reservoir side in order to analyze the relationship with survey results. From both the cross-correlation between tidal and water level variation at four wells and the distribution of electrical conductivity in reservoir with depth, the major portion of seawater inflow are identified through the embankment dike. From electromagnetic and electrical resistivity survey results, it was found that the seawater inflow were happened through several small regions at seaside and became wider near reservoir side. The 2-D inversion sections of refraction seismic method showed that the pebble-bearing sand layer is spread over the whole region with two to four width. From the this study, small-loop EM, electrical resistivity and refraction seismic surveys accompany with the distribution of electrical conductivity in reservoir with depth and the monitoring results for water level variations are revealed to be effective to identify seawater inflow pathway through embankment dike and to establish the reinforce region and technique through the embankment dike.
키워드