도상작업 전·후의 도상 횡저항력 변동에 관한 실험적 연구

초록

The lateral ballast resistance is one of the main factors that could cause the lateral buckling of track. The ballast maintenance work or sleeper renewal disturbs the gravel arrangement, reduces the lateral ballast resistance, and eventually reduces the lateral buckling strength of track. According as the cumulative passing tonnage of train increases, both the lateral ballast resistance and the lateral buckling strength of track increase slowly. In this paper, the lateral ballast resistance was measured in neighborhood of Okchon in KyoungBu-Line, to be compared before and after the ballast class-2 work. We also investigated the recovery rate of the lateral ballast resistance which is influenced by cumulative passing tonnage of train.

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