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无砟轨道具有良好的力学性能,在高速铁路上得到了广泛应用,但随着运营时间及运量的增长,无砟轨道砂浆层偶有出现离析、破损现象,影响了线路质量和列车运行的平稳性。针对遂渝高速铁路纵连板式无砟轨道,在不影响列车运行的情况下,对砂浆层进行换填的不同轨道板支撑方案进行了分析比较,结果表明:采用尺寸为50 mm×100 mm×100 mm的6个混凝土块支撑方案较佳。
Ballastless track has good mechanical properties and has been widely used in high-speed railway. However, with the increase of operation time and volume, segregation and breakage occasionally occur in ballastless track mortar layer, affecting the quality of line and train operation Stationary. Aiming at the longitudinal slab ballastless track of Suining-Chongqing high-speed railway, the supporting schemes of different orbital slabs for replacing the mortar layer are analyzed and compared without affecting the train operation. The results show that: with the size of 50 mm × 100 mm × Six concrete blocks with 100 mm support the best solution.