A Study on the Structural Behavior of Underground Openings Considering the Effect of Excavation

굴착영향을 고려한 지하공동의 구조거동연구

  • 최규섭 (정회원, 중앙대학교 토목공학과) ;
  • 김대홍 (정회원, 한국원자력연구소)
  • Published : 1992.04.01

Abstract

In order to design and construct a safe and economic underground structure, it is essential to understand the structural behavior of underground openings considering the effect of the sequential excavation. Therefore, this paper includes the study of initial stress distribution before excavation and stress redistribution due to the sequential excavation. And discussion on numerical simulation techniques for the sequential excavation is also included. Then, the underground structure is analyzed using the finite element and distinct element methods of analysis considering the effect of the sequential excavation. Based on the results of the analysis, the followings are discussed: shape of the openings, effect and timing of structural reinforcements. methods and sequence of excavation.

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