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- W2345871304 startingPage "2906" @default.
- W2345871304 abstract "철도 선로선형은 한번 건설되면 변경하기가 매우 어렵다. 따라서 철도에서 선로선형의 변경은 일반적으로 큰 경제적비용을 수반한다. 본 연구에서는 기존 고속철도 및 일반철도의 속도향상을 위한 선형개량 시, 경제성을 고려한 평면선형의 허용개량범위 결정에 설계초기조건(교각)이 미치는 영향에 대해 분석하였다. 분석결과, 교각(Intersection Angle)이 클수록 직선부에 지장물이 있는 경우가 허용범위에 큰 영향을 미친다는 것을 알 수 있었다. 또한 교각이 클수록 최대 허용곡선반경은 작아지며, 허용완화곡선장은 길어짐을 알 수 있었다. 본 연구를 통해 교각의 크기 및 지장물 위치에 따른 개량허용범위를 쉽게 예상할 수 있으며, 속도향상 및 선로개선을 위한 선형 개량시 지장물을 고려한 경제적 설계가 가능할 것으로 예상된다. The alignment modifications after completion of railway construction entail a lot of efforts and time as well as high additional costs. In the process of renewal of the existing railway alignment to offer higher-speed services, the effect of initial design parameters(e.g., intersection angle) on determination of allowable degree of improvement of horizontal curves under consideration of economic efficiency is investigated in this study. From the analysis results, in the case that there are obstacles at the tangent line, it was found that the larger angle of intersection has a significant effect on the permissible zone. In addition, as the intersection angle is increased, the permissible values of maximum curve radius and the length of transition curve becomes smaller and longer, respectively. It is expected that this study can contribute to the efficient and accurate prediction of the permissible zone according to the locations of obstacles and the size of intersection angle as well as improvement in the railway alignment without any additional costs." @default.
- W2345871304 created "2016-06-24" @default.
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- W2345871304 date "2015-04-30" @default.
- W2345871304 modified "2023-09-25" @default.
- W2345871304 title "The effects of Design Initial Condition on Renewal of Railway Existing Curves" @default.
- W2345871304 cites W299870707 @default.
- W2345871304 cites W648853409 @default.
- W2345871304 doi "https://doi.org/10.5762/kais.2015.16.4.2906" @default.
- W2345871304 hasPublicationYear "2015" @default.
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