- 권한신청
- P-ISSN2233-8292
- E-ISSN2287-4747
- KCI
ISSN : 2233-8292
지반 및 라이닝 열화 계측 정보를 반영한 해저 터널의 안정성 평가
Estimation of subsea tunnel stability considering ground and lining stiffness degradation measurements
김병찬 (한양대학교)
문현구 (한양대학교)
송기일 (인하대학교)
- 다운로드 수
- 조회수
초록
해저 터널의 안정성 평가는 계측 변위 이외에도 응력, 수압 그리고 지반강성(열화) 등 다른 계측 정보를 사용해서 역해석 알고리즘에 반영하면, 그 효율성이 증대될 수 있다. 본 연구에서는 FLAC3D 프로그램에 내장된 FISH 언어를 사용해서, 기 구축된 변위-응력 기반의 차분진화 알고리즘을 수정 및 확장하였다. 확장된 차분진화 알고리즘에는 변위, 응력 정보 외에도 수압 및 지반 및 라이닝 열화 정보도 입력 인자로 사용되었다. 해저 터널 안정성 평가에 추가적인 계측 정보를 활용하면, 터널 역해석에 대한 오차율이 감소함을 확인할 수 있었다.
- keywords
- Stiffness degradation (Ground, Lining), Differential evolution algorithm (DEA), Subsea tunnel, 강성 열화(지반, 라이닝), 차분진화 알고리즘(DEA), 해저 터널
Abstract
Efficiency for estimation of subsea tunnel safety can be increased through reflecting back analysis algorithm to displacement measurements besides other measurement information such as stress, water pressure and ground stiffness degradation. In this study, the finite difference code FLAC3D built-in FISH language is used. In addition, the stability of the tunnel lining will be evaluated from the development of displacement-based algorithm and its expanded algorithm with conformity of several parameters such as stress measurements, water pressure measurements, tunnel lining degradation measurements and ground stiffness degradation measurements. By using additional measurement information to assess the stability of subsea tunnel, it was confirmed that the error rate is reduced to the tunnel back analysis.
- keywords
- Stiffness degradation (Ground, Lining), Differential evolution algorithm (DEA), Subsea tunnel, 강성 열화(지반, 라이닝), 차분진화 알고리즘(DEA), 해저 터널
참고문헌
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