High-Speed Railway Lines
摘要
Railway lines refer to all infrastructures except for power supply, overhead contact line system and communication signals, including subgrades, tracks, bridges, tunnels and construction materials, which are the premise and foundation to ensure the safe, steady and uninterrupted operation of trains at the top speed. To meet the requirement of operation safety, high-speed railway lines shall not only provide highly regular and stable rail surface for high-speed trains running at high speeds, but also shall guarantee the stability and durability of each component of railway lines, so that the transport department can finish passenger and cargo transport tasks with high quality.