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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 35 dB compared to fixed turnouts.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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