Key Technologies for Seamless Track Development in Depots Based on Upper Cover Vibration Source Control
To address the urgent need for vibration and noise reduction in the development of upper covers,this paper summarizes existing control measures for tracking vibration and noise in depots,emphasizing the necessity of implementing seamless rails in depot lines.We also examine the requirements for sleepers.Our calculations indicate that depots can meet the strength and stability requirements for seamless lines by using arm span resistance pillows in conjunction with other strengthening measures.Additionally,this paper introduces a seamless turnout technology for No.7 movable turnouts and verifies their seamless integration based on actual usage conditions in Beijing.The findings suggest that both the turnouts and the turnout groups are suitable for seamless application.A comparative test conducted at a speed of 15 km/h reveals that the movable turnout reduces vibration and noise by 3-5 dB compared to fixed turnouts.
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