TAF PUBLISHING

Recently, many countries are interested in the development of high-speed trains. However, compared to high-speed train technology developing, the high-speed train infra system is not verified. Furthermore, in the case of bridge-earthwork transition zone that is the most complicated in railroad facility track, bridge-earthwork is connected complicatedly. Disorder and destruction of track can be occurred by rigidity transition. To apply a high-speed train with 430km/h, it is needed to evaluate the stability of behavior condition of bridge-earthwork transition zone by instrumentation system and the construction methods that are accurately and consistently verifiable. In this study, vertical displacement of bridge-earthwork that connects pre-stressed concrete box bridge and earthwork zone is calculated theoretically and evaluates stability compared with measurement of wheel load, strain, displacement data with estimation data, and measurement criteria. Therefore, compared to wheel load, strain, displacement data with estimation data and measurement criteria, the stability showed favorable results.