한국지구물리탐사학회:학술대회논문집
- 한국지구물리탐사학회 2007년도 공동학술대회 논문집
- /
- Pages.245-250
- /
- 2007
소형루프 전자탐사법을 이용한 연약지반 조사
Soft Ground Investigations Using Small Loop EM
-
Kim, Ki-Ju
(Department of Geophysics, Kangwon National University) ;
-
Cho, In-Ky
(Department of Geophysics, Kangwon National University) ;
- Lim, Jin-Taik (Department of Geophysics, Kangwon National University) ;
- Kyeung, Keu-Ha (Department of Geophysics, Kangwon National University) ;
- Kim, Bong-Chan (Dike Co., Ltd.)
- 발행 : 2007.06.07
초록
The small loop EM method is a fast and convenient geophysical tool which can give shallow subsurface resistivity distribution. It can be a useful alternative of resistivity method in conductive environment. We applied the multi-frequency small loop EM method for the investigation of a soft ground landfill site which was constructed on a tideland since the resistivity of the survey area is extremely low. 3D resistivity distribution was obtained by merging 1D inversion results and shallow subsurface structure can be interpreted. By comparing the result with the drilling log and measured soil resistivity sampled at 16 drill holes, we can get lot of information such as groundwater level, thickness of landfill, salinity distribution, depth to the basement and etc.