正线轨道技巧标准(国外英文资料).docVIP

正线轨道技术标准(国外英文资料) 6.2 track 6.2.1 design principles The structure of the orbit should be sufficiently strong, stable, durable and flexible to ensure the safety, smoothness and comfort of the driving. At the same time, the structure design should be simple for maintenance and maintenance. The design of the orbital structure should be based on mature technology, technology and advanced scientific and technological achievements and should be convenient for construction. 3. To meet the needs of protecting urban environment, track structure design should adopt the corresponding vibration noise reduction measures, will generate vibration and noise pollution control operating within the scope of the state environmental protection standards allow. The orbital structure should be well insulated to reduce stray current. 6.2.2 adopt specifications and procedures The subway design code (GB50157-2003) Railway track design code (gb10082-2005) Railway station and key design specifications (gb50091-2006) Quality acceptance standards for railway track construction (tb10413-2003, j284-2004) The underground railway construction and acceptance specification (gb50299-1999) Cjj49-92, the design discipline on the corrosion protection of the subways stray current. The technical requirements of 43kg/m ~ 75kg/m hot rolled rail (TB/T 2344-2003) The maintenance of seamless wiring and maintenance (tb2098-89); Rail welding (TB/t1632-2005); Design of concrete structure design (gb50010-2002); Quality acceptance of concrete construction construction quality (GB50204-2002); Standards of urban environmental vibration (gb10070-88). 6.2.3 underground line The rail USES 60kg/m, each 25m of U75V hot rolled rail. The fastener USES the elastic split fastener. The daoist bed adopts the whole bed of the short sleeper, the concrete strength grade of the concrete is C30, the short sleeper concrete strength grade adopts C50. The bed USES two side drainage gutters, the longitudinal slope of the drainage ditch is