- The study on interval calculation of cross passage in undersea tunnel by quantitative risk assesment method
- Yoo, Ji-Oh ; Kim, Jin-Su ; Rie, Dong-Ho ; Shin, Hyun-Jun ;
- Journal of Korean Tunnelling and Underground Space Association, volume 17, issue 3, 2015, Pages 249~256
- DOI : 10.9711/KTAJ.2015.17.3.249
Abstract
Quantitative Mokpo-Jeju undersea tunnel is currently on the basis plan for reviewing validation. As for the cross section shape for express boat of 105 km line, sing track two tube is being reviewed as the Euro tunnel equipped with service tunnel. Also, 10 carriage trains have been planned to operate 76 times for one way a day. So, in this study, quantitative risk assessment method is settled, which is intended to review the optimal space between evacuation connection hall of tunnel by quantitative risk analysis method. In addition to this, optimal evacuation connection hall space is calculated by the types of cross section, which are Type 3 (double track single tube), Type 1 (sing track two tube), and Type 2 (separating double track on tube with partition). As a result, cross section of Type 2 is most efficient for securing evacuation safety, and the evacuation connection space is required for 350 m in Type 1, 400 m in Type 2, and 1,500 m in Type3 to satisfy current domestic social risk assessment standard.