축소모형 강관추진실험 경향 분석

Analysis of pipe roof method test with a reduced-scale model

  • 엄기영 (한국철도기술연구원, 철도구조연구실) ;
  • 정관동 (한국철도기술연구원, 철도구조연구실) ;
  • 이성혁 (한국철도기술연구원, 철도구조연구실) ;
  • 천정연 (한국철도기술연구원, 철도구조연구실) ;
  • 장희정 (성균관대학교, 사회환경시스템공학과) ;
  • 이종태 (한국철도시설공단, 시설운영본부, 건축관리팀)
  • 발행 : 2010.06.10

초록

The study on mechanical behavior of the structure at the site includes experimental method and numerical analysis method. Experimental method is categorized into true-scale test and laboratory model test. A laboratory model test is to monitor the failure mechanism with a model simulated similar with a real ground so as to identify the quantitative result, while a true-scale model test is the approach which enables to identify the potential problems that may occur with a simulated construction situation similar with a real site circumstance. Thus this study was intended to carry out the experimental test of non open-cut excavation by pipe roof method which is mostly common in domestic sites. as well as was aimed at identifying the ground behavior occurred during pipe penetration using laboratory model test. Appropriate reduced-scale model was selected, taking into account of domestic geological characteristics and operation characteristics of traditional and high-speed rail trains and the qualitative evaluation of displacement was carried out based on a certain ground loss volume depending on excavation after categorizing trackbed settlement pattern by depth of top soil.

키워드