Application of resistivity monitoring with tunnel excavation area

터널 굴착에 따른 전기비저항 모니터링 기술 적용

  • 안희윤 ((주)희송지오텍) ;
  • 정재형 (한국건설기술연구원 지반연구부) ;
  • 조인기 (강원대학교 지구물리학과) ;
  • 김정호 (한국건설기술연구원 자원탐사연구실) ;
  • 배규진 (한국건설기술연구원 지반연구부)
  • Published : 2008.12.26

Abstract

Resistivity survey is one of the widely used methods for the investigation of stability of the ground or bedrock around tunnel and is also used as an essential base data for stability and reduction of construction cost through first-hand approximation of rock quality at design step. Generally, the analysis of resistivity survey data is performed by single measurement. When distribution variation of groundwater around a tunnel over time is necessary for maintenance of a tunnel, resistivity monitoring is very useful survey method to grasp distribution variation of groundwater. So we performed the grid line resistivity survey to monitoring resistivity variation for six times. And we also tried to evaluate application possibility of the resistivity monitoring for construction safety through providing detailed information on fault zones.