수압파쇄 현장시험을 통한 국내 지반의 초기응력 분포양상 해석

• 영문명: Analysis of in-situ stress regime from hydraulic fracturing field measurements in Korea
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 최성웅(Choi Sung Oong)
• 간행물 정보: 『산업기술연구』vol.28, 111~116쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2008.09.30

영문 초록

Since the hydraulic fracturing field testing method was introduced first to Korean geotechnical engineers in 1994, there have been lots of progresses in a hardware system as well as an interpretation tool. The hydrofracturing system of first generation was the pipe-line type, and it has been developed to a wire-line system at their second generation. The current up-to-date system is more compact and is able to be operated by all-in-one system. With a progress in a hardware system, the software for analyzing in-situ stress regime has also been progressed. The shut-in pressure, which is the most ambiguous parameter to be obtained from hydrofracturing pressure curves, can now be acquired automatically from the various methods. While the hardware and software for hydrofracturing tests are being developed during the last decade, the author could accumulate the field test results which can cover the almost whole area of South Korea. Currently these field data are used widely in a feasibility study or a preliminary design step for tunnel construction in Korea. Regarding the difficulties in a site selection and a test performance for the in-situ stress measurement at an off-shore area, the in-situ stress regime obtained from the field experiences in the land area can be used indirectly for the design of a sub-sea tunnel. From the hydrofracturing stress measurements, the trend of magnitude and direction of in-situ stress field was shown identically with the geological information in Korea.

목차

Abstract

1. 서론

2. 한국의 지질

3. 수압파쇄 시험법의 발전

4. 초기응력 측정결과

5. 결론

참고문헌

키워드

수압파쇄 초기응력 해저터널 hydraulic fracturing In-Situ stress regime sub-sea tunnel