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混凝土轨枕线路具有轨面稳定、维修养护工作量小的特点,它是比较受欢迎的一种线路结构。但目前国内生产的各类轨枕,是一种有挡肩的结构,它在运营线上,最突出的缺点是在小半径曲线上不能保持轨距。铺设在小半径曲线上的轨枕,在上道几个月后,轨枕的挡肩往往被挤坏。早在1961年就发现铺设在我段管内浙赣线K7公里(R=335米)曲线的混凝土轨枕,使用不到两年轨枕挡肩破损已达52％,轨距扩大,危及行车安全,不得不全数换铺木枕。
Concrete sleeper line with rail surface stability, maintenance and repair workload is small, it is a more popular line structure. However, the current domestic production of various types of sleepers, is a kind of retaining the shoulder structure, it is operating in the line, the most prominent shortcoming is that in the small radius curve can not maintain gauge. Sleepers laid on a curve of small radius, after a few months on the road, the sleepers of the sleepers tend to be crushed. As early as 1961, it was found that concrete sleepers laid in the curve of K7 km (R = 335 m) of the Zhejiang-Jiangxi line in the section of I-section of pipe have not reached the limit of 52% with less than two years of sleeper shoulder breakage, which widens the gauge and endangers the driving safety. Not all the shops for wooden pillow.