城市轨道交通高精度装配式轨道关键技术及应用成效
吴俊
Key Technology and Application Effect of High Precision Prefabricated Track for Urban Rail Transit
WU Jun
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作者信息:中铁上海设计院集团有限公司， 200070， 上海
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Affiliation:China Railway Shanghai Design Institute Group Corporation Limited, 200070, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.03.047
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中图分类号/CLCN:U213.2+42
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栏目/Col:应用技术
摘要:
［目的］为深入贯彻国家交通强国战略与标准化、智慧化和精细化等低碳装配建造理念，针对当前城市轨道交通轨道结构以现浇道床为主带来的施工精度不足、施工装备落后、维修手段欠缺及全寿命周期系统性差等问题，需对城市轨道交通高精度装配式轨道技术进行研究。［方法］按照标准化设计、工厂化制作、机械化施工、高精度控制、全寿命管理的总体研发技术路线，依托上海轨道交通二期、三期建设项目，对装配式轨道理论研究以及方案设计、效果试验和验证、轨道状态在线监测等进行了研究，并简述了高精度装配式轨道技术的应用成效。［结果及结论］形成了高精度预制装配技术、节能施工装备技术、绿色建造技术和智能监测技术等城市轨道交通装配式轨道关键技术，显著提升了轨道建设与运维品质。高精度装配式轨道技术的应用，有效提高了轨道结构的建造精度；较大幅度提高了轨道结构的优良几何形位状态以及稳定性、平顺性等指标；无轨系列施工装备节省了施工期间的大量人力、物力及时间成本；轨道状态在线监测系统及管理平台的应用，使得人工巡检工作量减少30%～40%，维保工作效率提升20%～30%，设备病害检出率提高30%～40%；减少了城市轨道交通列车运行的环境影响。
Abstracts:
［Objective］ In order to thoroughly implement the national strategy of building China with a strong transportation network and the low-carbon assembly and construction concepts such as standardization, intelligence and refinement, and to address the problems of insufficient construction accuracy, outdated construction equipment, lack of maintenance methods, and poor overall life cycle systematicity caused by the current cast-in-place ballast, which is presently the main track structure in urban rail transit, it is necessary to make research on high-precision prefabricated track technology for urban rail transit. ［Method］ In terms of the prefabricated tracks, theoretical research and scheme design, effect experiments and verification, and online monitoring of track conditions are carried out in accordance with the overall research and development technology route of "standardized design, factory production, mechanized construction, high-precision control, and full life management", and based on the Phase II and Phase III construction projects of Shanghai Metro. The application effect of the high-precision prefabricated track is briefly introduced. ［Result & Conclusion］ The key technologies of prefabricated track in urban rail transit, including high-precision prefabrication and assembly technology, energy saving construction facility technology, green construction technology and intelligent monitoring technology are developed, significantly improving the quality of rail construction, rail operation and maintenance. The application of high precision prefabricated track technology improves the construction precision of track structure effectively, improves the indicators like excellent geometry, stability and smoothness of the track structure significantly. Series of trackless construction equipment saves a lot of manpower, material resources and time cost during construction. The application of track condition online monitoring system and management platform reduces the workload of manual inspection by 30%~40%, increases the maintenance efficiency by 20%~30% and the disease detection rate by 30%~40%, reducing the environmental impact of urban rail transit train operation.
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