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The development of a back analysis program for subsea tunnel stability under operation: longitudinal direction

운영 중 해저 터널의 안정성 평가를 위한 역해석 프로그램 개발: 종단방향

  • An, Joon-Sang (INHA University, Graduate student, Dept. of Civil Engineering) ;
  • Kim, Byung-Chan (HANYANG University, Dept. of Natural Resources and Environmental Engineering) ;
  • Moon, Hyun-Koo (HANYANG University, Dept. of Natural Resources and Environmental Engineering) ;
  • Song, Ki-Il (INHA University, Graduate student, Dept. of Civil Engineering)
  • 안준상 (인하대학교 토목공학과) ;
  • 김병찬 (한양대학교 자원환경공학과) ;
  • 문현구 (한양대학교 자원환경공학과) ;
  • 송기일 (인하대학교 토목공학과)
  • Received : 2016.11.03
  • Accepted : 2016.11.24
  • Published : 2016.11.30

Abstract

If a back analysis is used in various measurement information for the estimation of an operating subsea tunnel safety, it is possible to obtain the results within efficient error rate. With such a commercial geotechnical analysis program as FLAC3D, back analysis is performed with a DEA which was validated in previous studies. However, there is a problem that is relatively a time-consuming analysis. For this reason, beam-spring model-based FEM solver which takes shorter relative analysis time, was developed by Python language, and then combined with the built-DEA. In order to consider the assessment of safety of an operation tunnel near real-time, a program for longitudinal direction tunnel was developed due to its relative easy development for analysis solver engine.

Acknowledgement

Grant : 고수압초장대 해저터널 기술자립을 위한 핵심요소 기술개발

Supported by : 국토교통과학기술진흥원

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