The estimation of the behavior of urban shallow subway tunnels being applied external load

외력 작용시 도심지 얕은 지하철 터널의 거동평가

  • 이정석 ((주)다솔컨설턴트 지반공학부) ;
  • 유광호 (수원대학교 토목공학과) ;
  • 박연준 (수원대학교 토목공학과) ;
  • 백경종 ((주)다솔컨설턴트)
  • Published : 2003.06.01

Abstract

Nowadays, the construction of new ground structures, which can influence the stability of existing underground structures, is increasing. Consequently, many technical problems occur during the design and construction stage of the new structures. In constructing a neighboring structure, reasonable design and construction is strongly required to balance between the stability of the existing underground structures and the economy of construction of the new structure in terms of the importance of the existing underground structures. Many researches have been performed to estimate the safe region and behavior of underground structures. Constructing a new ground structure above the existing underground structure, external loads are to be applied to the existing underground structure. In this study, therefore, the stability and safe region of the existing underground structure was re-established with respect to the relative location of the new ground structure with the underground structure, the depth from surface to top of the underground structures, and ground conditions.