한국지구물리탐사학회:학술대회논문집
- 2007.06a
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- Pages.93-100
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- 2007
Analysis of Ground Deformation Deformation using Resistivity Monitoring Technique at a Tunnel Excavation Area
전기비저항 모니터링을 이용한 터널 주변 지반상태 변화 파악
- Ahn, Hee-Yoon (Heesong Geotek Co. Ltd.) ;
- Jeong, Jae-Hyeung (Geotechincal Engineering Research Department, KICT) ;
- Cho, In-Ky (Department of Geophysics, Kangwon National University) ;
- Park, Sam-Gyu (Geotechnical Engineering Division, KIGAM) ;
- Kim, Ki-Seog (Heesong Geotek Co. Ltd.) ;
- Jung, Lae-Chul (Heesong Geotek Co. Ltd.)
- 안희윤 ((주)희송지오텍) ;
- 정재형 (한국건설기술연구원 지반연구부) ;
- 조인기 (강원대학교 지구물리학과) ;
- 박삼규 (한국지질자원연구원 지반안전연구부) ;
- 김기석 ((주)희송지오텍) ;
- 정래철 ((주)희송지오텍)
- Published : 2007.06.07
Abstract
During tunnel excavation, drawdown of groundwater table or discharge from tunnel faces may not only reduce stability of tunnel and work efficiency but cause environmental problems. We have investigated the applicability of electrical resistivity survey for the establishment of the monitoring system for groundwater behavior and detecting flow channel of groundwater during tunnel excavation. The groundwater level was continuously measured at several points for 1 year. Survey was conduted at every 3 months using preinstalled electrical resistivity cables on site. The results show that observed changes in resistivity ratios in the area can be explained with observed changes in groundwater level. Thus, we believed that electrical resistivity analysed together with groundwater data can be applied for the monitoring of groundwater in tunnel area.