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김인재(In-Jae Kim),최유복(You-Bok Choi),김연국(Yeon-Guk Kim) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
A turnout comprises of complicated components, which results in various structural constraints. As such, it contributes significantly to determining a speed objective for railway system during the passage of a train through a turnout. Thus an intensive review on turnout alignment and its improvements should be conducted at the beginning of the design phase in order to achieve an enhanced permissible speed in diverted track. In particular, I have assessed the impact of the dynamic characteristics of a train such as lateral acceleration, the continuous and discontinuous changes of the lateral acceleration on the turnout alignment.
이호룡(Ho-Ryong Lee),장승엽(Seung Yup Jang),김연국(Yeon-Guk Kim),윤성순(Sung-Soon Yun) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Recently, with the beginning of the commercial operation of high-speed railway, there have been a number of changes in track structure fields. Also, it is expected that the development and introduction of new technology will be increased afterwards. However, it accompanies a lot of risk to install new track structures of which performance and safety are not verified on permanent ways with high traffic density. Therefore, to minimize the risk and enhance the adoption of new technology, it is required to develop a systemic verification system for track structure. To do this, in this paper, main contents of a draft of guidelines for track structure verification, and main issues in debate such as criteria and method for verification, test conditions and test periods are discussed. Also, a process to choose a most appropriate one for a specific project out of proven track structures by the above verification system, the selection process by the technical investigation committee and the VE process to analyze the economical and maintenance aspects based on LCC concept in Korea Rail Network Authority is introduced.