반복하중에 의한 성토구조물의 Creep현상에 관한 연구

초록

The use of concrete track is increased in Korea and developed countries since it can greatly reduce maintenance expenses. Unlike the ballast track, a concrete track does not allow settlement either embankment or foundation. There are a lot of difficulties in maintenance work if a concrete track cracks while the railway is in service. Therefore, the creep behavior of embankment should be estimated for the entire period of the concrete track lifetime. The causes of creep settlement on railway embankment under concrete track are cyclic loadings from trains and the body force of itself. This paper analyzes creep behaviors of embankment by using LUSAS, FEM program to investigate the relationship between settlement and accumulated passing tonnage. The research results can be used for the design of railway embankments under concrete track.