PREDICTION OF INTENSITY OF VIBRATION AROUND CROSSING PART OF MANGANESE TURNOUT

초록

In railroad operation, turnout is the device providing very critical functions of moving train to the neighboring rail. It’s the only movable section among the peripheral device of the rail, which has a complicated structure and as rapid movement between the wheel and rail during operation is unavoidable, the safety and vibration generated by repeated impact load by passing trains become always the major concern. Response to rail vibration varies depending on physical properties of the rail, rail base and the ground, making it difficult to estimate the quantitative outcome through measurement. Thus, experimental or empirical approach, rather than analytic method, has been more commonly employed to deal with the ground vibration. Such approach is to take the fundamental procedures in analytic way, while adopting experimental and measures values in parallel for the factors with high degree of uncertainty. This study hence was intended to compare and analyze the vibration values measured at the crossing part of manganese turnout by type of train and turnout and distance, as well as predict the intensity of vibration generated at the crossing part of manganese turnout when tilting train accelerates.