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2016 Vol.18, Issue 2 Preview Page
DEA optimization for operating tunnel back analysis

운영 중 터널 역해석을 위한 차분진화 알고리즘 최적화

Joon-Sang An1
,
Byung-Chan Kim2
,
Hyun-Koo Moon2
,
Ki-Il Song3*
,
Guo-Shao Su4
안 준상1
,
김 병찬2
,
문 현구2
,
송 기일3*
,
Su Guo-Shao4
1INHA University
2HANYANG University
3INHA University
4GUANGXI University
1인하대학교
2한양대학교
3인하대학교
4Guangxi University
*교신저자. *Corresponding Author. 
31 March 2016. pp. 183-193
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Abstract

Estimation of the stability of an operating tunnel through a back analysis is a difficult concept to analyze. Specially, when a relatively thick lining is constructed as in case of a subsea tunnel, there will be a limit to the use of displacement-based tunnel back analysis because the corresponding displacement is too small. In this study, DEA is adopted for tunnel back analysis and the feasibility of DEA for back analysis is evaluated. It is implemented in the finite difference code FLAC3D using its built-in FISH language. In addition, the stability of a 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.

Keywords
Differential Evolution Algorithm(DEA) Optimization
Back Analysis
FLAC3D
Operating Tunnel

운영 중 터널의 역해석을 통한 안정성 평가는 다루기 어려운 개념이다. 특히, 해저터널처럼 라이닝이 상대적으로 두껍게 시공된 경우에 발생하는 내공변위가 작기 때문에, 일반적으로 터널 역해석에 사용되는 변위 기반의 터널 역해석에는 한계가 있을 것으로 판단된다. 여기서는 FLAC3D 프로그램에 내장된 FISH 언어를 사용해서, 다양한 역해석 알고리즘 중에 차분진화 알고리즘의 구축을 통한 터널 역해석에 대한 적용성을 확인하였다. 또한, 변위 기반의 알고리즘 구축과 더불어 응력 계측값 등 다양한 인자의 적합성을 확인하여 터널 라이닝의 안정성을 평가하고자 한다.

키워드
차분진화 알고리즘(DEA) 최적화
역해석
FLAC3D
운영 중 터널
References
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 18
  • No :2
  • Pages :183-193
  • Received Date : 2016-02-16
  • Revised Date : 2016-03-03
  • Accepted Date : 2016-03-04
  • DOI :https://doi.org/10.9711/KTAJ.2016.18.2.183
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