Box Test 반복하중 재하시험을 통한 광폭 침목의 침하 특성 분석

초록

As alternatives for the sleeper types which reduce the progress of track irregularity in ballast track, wide sleeper and intermediate block were suggested in the last research result. This paper aimed to analyze the behavior of wide sleeper comparable to the conventional reference sleeper, and its characteristics of settlement. A box equipment to test the half size sleeper in the cumulative loading test, was made, and used to measure the long-term settlement behavior of two different sleepers according to the repetitive loading. In order to compare the static stiffness between before and after dynamic loading, the static loading tests were performed for each case. As a result, the performance of wide sleeper, and the relationship between the effective loading area of sleeper and the ballast stiffness are analyzed.