The construction of underground rail crossing is effect on railroad infra-structure and rail safety. So various methods have been suggested to construct through the infra-structure on the railroad. This paper treats the results of studies for safety of temporary bridge using a commercial FEM program, RM which is operated based on data measured on a sites. Also it was carried out optimal section considering characteristic of dynamic which reflects actual load for speed cases.

• 엄기영(한국철도기술연구원 고속철도본부 수석연구원, 공학박사) | Eum, Ki Young
• 강윤석(한국철도기술연구원 고속철도본부 주임연구원, 공학석사) | Kang, Yun Suk Corresponding Author
• 윤희택(한국철도기술연구원 고속철도본부 책임연구원, 공학박사) | Yoon, Hee Taek
• 김재왕(한국철도기술연구원 고속철도본부 주임연구원) | Kim, Jae Wang