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为了防止运煤线上道床不洁,避免列车上的煤粉等脏物落入道床,我们科研所研究在北京局石太线和京广线上试用石棉作为碴料试铺了一种新型石棉碴道床.石棉碴是石棉工业上的废矿碴,碴内含有较短的石棉纤维,在潮湿状态下,经过夯实,碴内纤维和细碴颗粒相互裹缠.形成网络结构,粘结成为一体,使道床表层结成硬壳,防止散状物侵入道床。
In order to prevent the coal bed line bed is not clean, to prevent the train of coal and other dirt fall into the bed, our research institute in Beijing Bureau Shitai and Beijing-Guangzhou line try asbestos as a ballast test shop a new type of asbestos Ballast ballast bed asbestos ballast is asbestos industry waste mineral ballast, ballast which contains shorter asbestos fibers, in the wet state, after compaction, ballast fibers and fine ballast particles wrapped each other to form a network structure, bonding into one , So that the surface of the road bed into a hard shell to prevent bulk intrusion into the bed.