This standard specifies technical requirements, test methods and rules for laying of high speed turnouts for slab track.
This standard is applicable to laying of turnouts for slab track of high speed railway main track of running speed 250 km/h to 350 km/h.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
TB/T 1632.1 Welding of Rails — Part 1: General Specification
TB 10601 Code for Engineering Survey of High Speed Railway
3 Technical Requirements
3.1 Preparation of laying
3.1.1 Before laying, the variety, specification and quantity of turnout components listed in consignment note and packing list shall be checked, and check their appearance and quality certificates.
3.1.2 Laying of turnouts shall be conducted after construction quality acceptance of subgrade, bridge and tunnel in turnout zone are qualified and precise survey network is surveyed and set in turnout zone.
3.1.3 Before laying, turnout center, control benchmark of straight rail and side rail shall be surveyed and set; turnout laying position shall be determined according to control benchmark surveyed and set.
