현장측정을 통한 기존 분기기용 목침목과 개량 분기기 분절침목의 동적거동 비교평가

초록

The major objective of this study is to investigate the dynamic behavior evaluation of split PC sleepers for railwayturnout by the field test. In railway engineering, a turnout is necessary to allow a vehicle to move from one trackto another. So, turnout is required very complex railway technologies such as rolling stock, track. In reference toconventional line speed-up and improvement railway, accurate assembly of turnout affects traveling qualify of turnoutarea and running safety. Because of heavy weight and a large volume of the long sleeper used to turnout and carlimit, transport and the prerequisite for trouble-free transport of the factory pre-assembled major turnout componentsis achieved through division of long sleepers. The one of the advantages for using a split sleeper is to reduce thedynamic vibration according to the information of developed nations. Therefore, we investigate the characteristic ofdynamic behaviors of split sleepers which are adopted for the first time to improve performance of turnout From thefield test results of the split sleeper, it is evaluated that the modification of weight, material and stiffness comparedwith wood sleeper is very effective for the ballast safety. However, the decrease in vibration of split sleeper was notfound out.

키워드