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TB 10082-2017: Code for design of railway track Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid TB 10082: Historical versions
TB 10082-2017: Code for design of railway track---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/TB10082-2017Code for Design of Railway Track Issued on October 18,2018 Issued by National Railway Administration of the People’s Republic of China 1 General provisions1.0.1 This Code is prepared with a view to unifying the technical standards for railway track design and making the design safe, reliable, technologically advanced and mature > economical and applicable. 1.0.2 This Code is applicable to the track design of high-speed railway, intercity railway, Class I and Class II mixed traffic railway, as well as heavy-haul railway with standard track gauge. 1.0.3 Standards for track design shall be determined according to railway classification, design speed, train axle load, passenger and freight volume, environmental conditions, maintenance and management methods, etc. 1.0.4 The design of track structure shall meet the requirements on safety, stability, geometry deviation, durability and low maintenance. And the selection of track components shall be rational for matching, and beneficial for standardization and generalization. 1.0.5 Track design shall match with sub-track structures, and meet relevant technical requirements interfaces. 1.0.6 The track design of reconstructed existing line and constructed second track shall make full of existing track components and auxiliary equipment. 1.0.7 The track design shall meet the requirements on track structure gauge. 1.0.8 The track design shall attach great importance to environment protection, energy conservation susceptible to environmental impact, relevant shall be included for the track design according to the requirements of environmental impact assessment. 1.0.9 Spare parts and consumables shall be determined according to the needs of operation and during track design. 1.0.10 Advanced technology and equipment, as well as new techniques and materials shall be applied for track design. 1.0.11 Components and engineering materials of track structure shall comply with relevant valid national standards and regulations on market access. 1.0.12 In addition to this Code, track design shall also comply with relevant valid national standards.3 Basic Requirements3.1 General Requirements 3.1.1 The tracks of railway main line shall be designed as trans-section CWR track, while the tracks of main line of a heavy-haul railway may also be designed as section CWR track. CWR track shall be designed in compliance with provisions in relevant codes such as Code for Design of Railway Continuous Welded Rail (TB 10015). 3.1.2 The type of track structure of a main line shall be selected according to railway classification, design speed, axle load, annual gross traffic tonnage, engineering conditions of sub-track structure, environmental conditions, as well as requirements of maintenance. The selected track structure shall pass the techno-economic appraisal. The type of track structure for the high-speed railway, intercity-railway and heavy-haul railway shall comply with relevant codes for design. The mixed traffic railway should be built with ballasted track and shall comply with the following provisions. 1 Ballastless tracks should be laid for tunnels or tunnel groups longer than 1 km.2 Ballasted track should be used for the section under special geological conditions where thedeformation is difficult to be controlled, such as the active fault zone, severe ground settlement deep frozen layer with high water level, and area with thick layer of soft soil.3 Track structure of the same type shall be used in one relativelytransition section for track structures shall be set between the ballastless track and ballasted track. 3.1.3 Technical standards for the track serving loaded trains and the track serving empty trains in a double-track railway line shall be developed individually according to the annual gross traffic tonnage and design axle load when the annual gross traffic tonnage of the two tracks is significantly different from each other. 3.1.4 Major structures of the ballastless track shall be designed to serve 60 years. 3.1.5 The rail cant shall be 1. 40. 3.1.6 Track design shall comply with waterproofing and drainage requirements. In cold and cold areas, protection measures for freeze-thaw shall be taken, and the track shall be well connected to relevant specialized waterproofing and drainage systems. 3.1.7 The turnout shall not be set at the junction of the subgrade and the bridge abutment. Turnout of the main line with design speed of 200 km/h or above shall not be set at the beam joint , and should not be set in transition section between the subgrade and bridge (or culvert) , the subgrade and tunnel, the bridge and tunnel ,etc. 3.2 Curve Superelevation and Gauge Widening 3.2.1 Outer rail superelevation in curve shall be set according to the following requirements. well as guarantee passengers’ 1 In the new high-speed railway and intercity railway, the curve superelevation shall meet the needs of passengers’ comfort line, on through trains of the new line.4 Rail and Fittings4.0 .1 60 kg/m rail shall be used for the main line of a high-speed railway, intercity railway, or Class 工 mixed traffic railway:60 kg/m or 50 kg/m rail may be used for Class II mixed traffic railway. or above rail shall be used for the main line of a heavy-haul railway. 4.0.2 60 N or 75 N rails should be selected when rails of 60 kg/m or above are used to build the main line or stock rails of the turnout. 4 .0.3 The standard lengths of rail may be 100 m, 75 m, 25 m, and 12.5 m. For CWR track, the standard length of 60 kg/m rail should be 100 m and the standard length of 75 kg/m rail should be 75 more 100 m. For jointed track, the standard length of rail should be 25m. 4.0.4 Material quality of rail for the high-speed railway and the intercity railway shall comply with the following provisions. 1 U71MnG rail with the tensile strength of 880 MPa shall be selected for the high-speed railway and the intercity railway. 2 In-line heat treated rail of the radius smaller than or equal to 2 800 m, and for section with curve radius smaller than or equal to 1 200 that serve EMU operation including the running track, the connecting line and the station track section. 4.0.5 The material quality of rail for the mixed traffic railway shall comply with the following provisions. 1 Hot-rolled rail with tensile strength of 980 MPa shall be selected for the straight line and for the curve section with radius larger than 1 200 m, both with annual gross traffic tonnage more than or equal to 50 Mt. Rail with tensile strength no less than 1 180 MPa shall be selected for the curve section with radius less than or equal to 1 200 m, and the rail shall be in-line heat treated. 2 Hot-rolled rail with tensile strength of 880 MPa shall be selected for the straight line and for the curve section with radius larger than 1 200 m, both with annual gross traffic tonnage less than 50 Mt；hot-rolled rail with tensile strength of 980 MPa shall be selected for lines in a mountain region. The rail with tensile strength no less than 1 080 MPa shall be selected for curve section with radius less than or equal to 1 200 m, and the rail shall be in-line heat treated. 4.0.6 The material quality of rail for the heavy-haul railway shall comply with the following provisions. 1 Hot-rolled rail with tensile strength no less than 980 MPa shall be selected for the straight line of heavy-haul railway, and for the curve section with radius larger than 1 600 2 The rail with tensile strength no less than 1 180 MPa shall be selected for the curve section with radius less than or equal to 1 600 m, and the rail shall be in-line heat treated. 4.0.7 The quality of rail material of the turnout, the rail expansion joint and the glued insulation rail joint shall comply with the following provisions. 1 Stock rails, blade rails, frog rails, wing rails (except for the wing rails with special section TY1) and closure rails of a turnout shall comply with the following provisions. 1) In-line heat treated U71MnG rail that has symmetrical or asymmetrical cross section and has tensile strength of 1 080 MPa shall be selected for the high-speed railway and the intercity railway. 2) In-line heat treated rail that has symmetrical or asymmetrical cross section and has a tensile strength of 1 180 MPa or above shall be selected for the mixed traffic railway and the heavy- haul railway. 2 In-line heat treated rail with symmetrical or asymmetrical cross section shall be used for the rail expansion joint. 3 In-line heat treated rail, with the factory-made glued insulation rail joint. 4.0.8 Compromise rail shall be used to connect rails of different cross section. 4.0.9 The strength grade of the bolt and nut and washer type of rail joint shall comply with the following provisions. 1 Class 10.9 high-strength joint bolt, Class 10 high-strength nut, and high-strength plain washer shall be used for the rail joint of main line. 2 Class 10.9 high-strength joint bolt and high-strength plain washer shall be used for the 60 kg/m rail joint of station track；Class 8.8 or above high-strength joint bolt and single coil spring washer shall be used for the 50 kg/m rail joint of station track；all nuts shall be Class 10 high-strength ones. 4.0.10 Glued insulation rail joints shall be used for CWR track and should be used for jointed track. Glued insulation rail joint shall comply with Specification for Bonded Insulated Rail Joints used on Railway (TB/T 2975). 4.0.11 Field welded rail joint shall not be installed in the transition section of different track structures or the transition section of different sub-track structures, and the distance between the bridge abutment wall or bridge pier and the joint shall not be less than 2 4.0.12 Rail of the same type should be used for the same track in station. In adverse conditions, rails of different cross sections may be used for station tracks and shall be connected with compromise rails except for the shunting track with brake shoes. 4.0.13 Reclaimed rail shall be used in compliance with the following provisions. 1 Reclaimed rail and turnout shall not be used on the new main line, and should not be used receiving-departure track. 2 Reclaimed rail shall not be used on the existing line with an annual gross traffic tonnage Over 15 Mt.3 Reclaimed railshould not be used in the curve section with severe rail wear. 4 Reclaimed rail shall not put into use until it is reconditioned mechanically. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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