도시철도 개착식터널의 내진성능평가를 위한 지반변위 연구

초록

Scismic analysis of cut-and-cover tunnel can be perfoumed using the displacement method or the time history analysis. THe reaponse displacement method has been widely used because it is more simple. According to previous studies, however, the results for the response displacement method understimated the responses based on the scismic design of structures can be a problem. In this study, about an actual tunnel of a metropolitan subway line ground displacements obtained by using response displacement method and Shade91 for Kobe earthquake and Northridge carthquade were compared. As a result, the neccessity of scismic design criteria of urban railway have been identified.