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전일식(Il-Sik Jeon),이승열 (Syeung-Youl Lee),최형수(Hyoung-Su Choi),김한집(Han-chip Kim) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
In railway Ballast plays an essential role as intermedium in transmitting train load to subgrade safely. Gyoung-Bu HSL 1st phase consists of ballasted track except for over 5km long tunnels. Ballast track occurred track irregularity by train loads and requires periodic maintenance work. However Repetitive train operation and tamping work cause to accelerate track irregularity and ballast deterioration such as abrasion and crushing. For these reason Track irregularity areas had occurred ballast cleaning work to improve track quality. However for the train to run safety ballast cleaner working area needs train speed reduction and track stabilization work due to ballast relaxation and initial settlement. In this study according to train speed-up and cumulative traffic tonnage we measured and analyzed the track settlement and acceleration of sleepers to evaluate of track stabilization in order to keep the ballast condition stable after cleaning work.