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随着国民经济的发展,城市建设和工矿企业中各类管道穿越铁路的情况日益增多。如城市雨、污水排水管道、给水工程的自来水管、农田水利方面的引水渠道、煤气热力管网用的套管、通讯电缆管块的外套管等,当与铁路交叉时,多用预制的圆形普通钢筋混凝土管穿越铁路路基。深埋在路基下的管道施工时,为了
With the development of the national economy, various types of pipelines in urban construction and industrial and mining enterprises are increasingly crossing the railway. Such as urban rain, sewer pipes, water pipes for water supply projects, water diversion channels for farmland water conservancy, casing pipes for gas heat pipe networks, casing pipes for communication cable pipe blocks, etc. When crossing with railroads, prefabricated circular Ordinary reinforced concrete pipe through the railway embankment. Deep buried in the subgrade under the pipeline construction, in order to