A Study on the Development of the Seismic Fragility Functions of the High Speed Railway Tunnels in use
기존 고속철도 터널의 지진취약도 함수 개발에 관한 연구

Hongkyoon Kim, Chulsik Shin, Taehyung Lee, Jonggun Lee, Duhee Park
2014 Journal of the Korean geoenvironmental society  
In this study, the staged seismic performance evaluations were conducted to the 91 high speed railway tunnels in use for checking whether to comply with the recent design criteria or not. In addition, the seismic fragility functions of the tunnels were developed to allow the probabilistic risk assessment. The results of the staged seismic performance evaluations which consist of a preliminary assessment and a detailed assessment, show that the tunnels comply with the recent design criteria.
more » ... reference to the results of previous studies, a form of the proposed seismic fragility functions was set as a log-normal distribution by PGA, and the parameters of the functions were determined by using the probability of damage for the design PGA level. The seismic fragility functions were developed for each types (Cut & Cover, NATM) of tunnels. The seismic fragility functions from this study and the existing research results (FEMA, 2004) were compared to evaluate the seismic performance level of the tunnels, as a result the tunnels of this study were relatively superior to the ASSM tunnels on the seismic performance.
doi:10.14481/jkges.2014.15.11.67 fatcat:mzw74tg24femxft7xzbgthgyx4