Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Effects of Excavation Methods on Tunnel Deformation Behavior using Finite Element Analysis

굴착공법이 터널변위 거동에 미치는 영향-유한요소해석

  • Yoo, Chung-Sik (Dept. of Civil & Envir. Engrg, Sungkyunkwan Univ.) ;
  • Kim, Joo-Mi (MIDAS Information Technology Co., Ltd.) ;
  • Kim, Sun-Bin (Dept. of Civil & Envir. Engrg, Sungkyunkwan Univ.)
  • 유충식 (성균관대학교 토목환경공학과) ;
  • 김주미 ((주)마이다스아이티) ;
  • 김선빈 (성균관대학교 토목환경공학과)
  • Published : 2006.03.24
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Abstract

Before getting to the actual study of the load distribution factor in various excavating methods, this research is preliminarily focused on the comparison of two different excavation methods, CD cut method and Ringcut method. Especially, the purpose of this research is to study the behavioral mechanism of two tunnels which share the same construction environment but different excavating method. Two numerical analysis models with the same tunnel section and material properties are compared in this study, and they are analyzed by 3D Finite Element Analysis. In each model, face stability, crown displacement, ground settlement, and shotcrete-lining stress are computed. Thus, the general behavior of CD cut method and Ringcut method are studied, and it certified what should be considered for the calculation of the load distribution factor.

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