Study on characteristics of initial rock stress state at shallow depth of the gneiss region in the central part of seoul

서울 중심부 편마암 분포지역 저심도 구간의 암반 초기응력 분포특성 연구

  • 배성호 ((주)지오제니 컨설턴트) ;
  • 전석원 (서울대학교 지구환경시스템공학부) ;
  • 최용근 ((주)지오제니 컨설턴트) ;
  • 김재민 ((주)지오제니 컨설턴트)
  • Published : 2003.06.01

Abstract

Since early in the 90's, as the need for construction of underground rock structures has been largely increased, the in-situ rock stress measurement has been widely carried out to provide the quantitative information on the initial stress state of test site at the design stage of underground rock structures. Among the diverse method developed for measuring rock stress, hydraulic fracturing method is most popularly used because it is applicable at pre-construction stage and has no limit in testing depth. In this paper a study on initial rock stress state at shallow depth of the plain gneiss region in the central part of Seoul was performed on the basis of the in-situ hydraulic fracturing stress measurement results from the 11 test boreholes. And overall characteristics of the initial stress field of the study area are discussed.