한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2002년도 추계학술대회 논문집(I)
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- Pages.608-613
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- 2002
철도노반 긴급복구를 위한 토목섬유 컨테이너의 파괴형태 분석
Analysis of Failure Mode of Geotextile Container for Urgent Rehabilitation of Railroad Bed
초록
This study was under taken as an analysis of failure mode in a railroad bed reconstructed with miniaturized Geotextile Container after being destroyed by heavy rain. It assesses the practical use of the bag shaped Geotextile Container method in the rehabilitation of destroyed roadbeds. The failure mode was assessed using the laboratory model tests to determine the following criteria: Strain of Geotextile Container, Vertical & Horizontal displacements of Geotextile Container layer, and the transmitting load effects due to the applied load. The Geotextile Container layer was failed as a Block Failure type, although there was some variation in the results between the saturated and unsaturated conditions. The main failure was caused by the reduction of the interface friction between Geotextile Containers. The result of this mobilizes the significant horizontal displacement and the ultimate failure of the Geotextile Container layer. The strain on the wet Geotextile Container was occurred about two times greater than that of dry condition.
키워드