Browse > Article

A Study on Coupling Coefficient Between Rail and Reinforcing Bars in Concrete Slab Track  

Kim, Min-Seok (서울산업대학교 철도전문대학원, 철도전기신호공학과)
Lee, Sang-Hyeok (서울산업대학교 철도전문대학원, 철도전기신호공학과)
Lee, Jong-Woo (서울산업대학교 철도전문대학원, 철도전기신호공학과)
Publication Information
Journal of the Korean Society for Railway / v.12, no.3, 2009 , pp. 405-411 More about this Journal
Abstract
Railway signaling system in a rapid transit using the ATC system the approved a speed limit to a train and a part of signaling system in a metro approved a distance which is possible to move. Referring to the way of transmitting train control information, there are the one transmitting it to the on-board system of a train using the direct track, the another transmitting it establishing an instrument, and the other transmitting an instrument by a railway track. The one is the method using the direct track as a conductor for composing the part of the track and attaining the information controlling a train by transmitting a signal to the track. It is used for the high-speed railway and the subway. The method using the track attains information by transmitting it to returned information, and the on-board system of a train attains it by magnetic coupling. Because many reinforcing bars on the concrete slab track are used, interaction between a rail and a reinforcing bar that is not produced on ballast track is made. Due to the interaction, the electric characteristic of rail is changed. In the current paper, we numerically computed the coupling coefficient between the rail and the reinforcing bar based on the concrete slab track throughout the model related to the rail and the reinforcing bar using the concrete slab track that is used in the second interval of the Gyeongbu high-speed railway, and we defined the coupling coefficient not changed in the electric characteristic of rail in the condition that there is no interaction between the rail and the reinforcing bar.
Keywords
concrete stab track; coupling coefficient; reinforcing bars insulation; track circuit; mutual inductance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Jordan, E.C. and Balmain, K.G.(1968), "Electromagnetic Waves and Radiating Systems," Prentice-Hall, Second Edition, pp. 233-235
2 Sadiku(1991), "Elements of Electromagnetics," Oxford University Press, Second Edition, pp. 278-288
3 William H. Hayt(2003), "Engineering Circuit Analysis," McGraw-Hill, Sixth Edition, pp. 433-435
4 Feymman, R.(2004), "Lecture on Physics," 승산, Vol. 1, pp. 23:1~23:9
5 Kim, M.-S.(2007), "A Study on Resonance Frequency Between Rail and Reinforcing Bar in Slab Tracks," ICEMS, Korea, October, pp. 1035-1041
6 한국철도시설공단(2007), "콘크리트궤도에서의 적정 신호장치 및 전철보호장비 설치방안 도출연구," 궤도토목연구팀, pp. 148-150
7 Ko, J.-S.(2007),"The Study of Rail Impedance Calsulation on the Slab Track," ICEE, Hong-Kong, July, pp. 942-947
8 CSEE&Pfleiderer(2005), "Assembly for UM71 Track Circuit Measurement on Pfleiderer RHEDA 2000 Test Track," pp. 50-60
9 김민석(2008), "콘크리트 슬래브궤도에서 레일과 철근 사이의 결합계수에 대한 연구," 한국철도학회 추계학술발표대회논문집, 한국철도학회, pp. 1169-1177   PUBMED
10 김민석(2008), "콘크리트 슬래브궤도에서 철근이 ATP시스템 지상자의 주파수에 미치는 영향," 한국철도학회 논문집, 한국철도학회, Vol. 11, No. 6, pp. 536-542
11 Cheng, D.K.(2002), "Fundamentals of Engineering Electromagnetics," Pearson Education, p. 177, pp. 292-293
12 Han, E.-S.(2006), "Maxwell 3D," Ansoft-Korea, pp. 102-110