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이승열(Lee Syeung-Youl),김남홍(Kim Nam-Hong),권순정(Kwon Soon-Jung),원용환(Won Yong-Hwan),맹달영(Maeng Dal-Young),김명수(Kim Myung-Su) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
Railway of korea used to install WT(Wood Tie) for adjust track guage in sharp curved track section because PCT(Prestressed Concrete Tie) couldn't adjust track guage. For ten years, Curve PCT has been developed and installed in sharp curved track section. For easy adjustment of slack, Shoulder gap of Curve PCT is made 6㎜ wider than normal PCT. Recently, 「Railway Construction Rules」 was revised and 「By Provisions for the Construction of Railways」was made. This Provisions contain the guidance of using slack in R≤300m. But, Slack-formula didn't revised and definite adjust-value didn't mentioned in the provision. Therefore, In this study reviewed Slack-formula and investigated usability of normal PCT in R≤300m.