上海城市轨道交通既有线改造实践与思考
王思韬1王镇波1姚建伟2
Practice and Reflection on Renovation of Shanghai Urban Rail Transit Existing Lines
WANG Sitao1WANG Zhenbo1YAO Jianwei2
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作者信息:1.上海申通地铁集团有限公司技术中心， 201103， 上海
2.上海申通地铁集团有限公司， 201103， 上海
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Affiliation:1.Technical Center of Shanghai Shentong Metro Group Co., Ltd., 201103, Shanghai, China
2.Shanghai Shentong Metro Group Co., Ltd., 201103, 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.2025.05.018
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中图分类号/CLCN:U239.5
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栏目/Col:土建工程
摘要:
［目的］上海是我国首批开通城市轨道交通的城市之一，近些年已开始开展既有线改造项目，做了许多开创性的探索与实践，有必要对相关经验进行总结与思考，以期形成可供参考借鉴的既有线改造方法与思路。［方法］梳理了上海进行既有线改造的背景与类型，介绍了既有线不停运改造、局部停运改造的实践情况，统计并分析了上海历史上已实施的既有线局部停运改造项目的时空特征。［结果及结论］不停运施工是国内外进行既有线改造时的基本原则，而停运施工在工期、施工质量、工程投资等方面更具优势，也具备特定的应用场景，如涉及轨行区的土建改造。通过晚发早收、正线留车增加夜间天窗时间等方法，以及采用预制、模块化设计、工序模拟等技术，提高夜间天窗时间的施工效率。通过在客流低谷期停运、安排短驳公交作为替代交通、跳站通过停运车站、建立成熟工作机制等措施，可以降低既有线局部停运改造对乘客出行的影响。
Abstracts:
［Objective］Shanghai is one of the first batch of cities in China launching urban rail transit systems. In recent years, Shanghai has initiated renovation projects for existing rail lines, undertaking many pioneering explorations and practices. It is necessary to summarize and reflect on the relevant experience to develop methods and approaches for existing line renovation， so as to serve as a reference for future projects. ［Method］The background and types of existing line renovation projects in Shanghai are outlined. Practices of existing line renovation without suspending operations and partially suspending operations are introduced. Additionally, the temporal-spatial characteristics of historically implemented partial suspension renovation projects in Shanghai are statistically analyzed. ［Result & Conclusion］The non-suspension construction is a fundamental principle for existing line renovation both domestically and internationally. This construction method has advantages in terms of construction duration, quality, and investment, and is particularly suitable for specific scenarios, such as civil engineering renovations involving track areas. Methods such as delayed starts and early closures, retaining trains on the mainline to extend night-time construction windows, and the use of prefabrication, modular design, and process simulation techniques can improve construction efficiency during night-time windows. Measures such as suspending operations during periods of low passenger flow, arranging shuttle buses as alternative transportation, skipping stations under renovation, and establishing mature operational mechanisms can mitigate the impact of partially suspending renovations on passenger travel.
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