装配式技术在轨道交通地下管线安装中的应用

Application of Prefabricated Technology in the Installation of Underground Pipelines for Rail Transit Systems

摘要

城市轨道交通地下空间管线密集、交叉频繁，传统“现场切割、逐根定位、逐点打孔”的安装方式在车站公共区与设备区容易引起工序拥挤、接口偏差累积与返工。近年来，中国在地铁工程中推进机电预制化与装配式工艺，将管段、支吊架与固定件由现场加工转为工厂成套加工，再在狭小空间内按分段、按系统快速拼装，以降低现场湿作业与二次破坏风险，并提升接口一致性与可替换性。装配式车站的管线敷设与综合支吊架等做法已在工程实践与研究中得到总结与推广。文章围绕地下管线的工程属性与装配式安装关键做法展开，并提出可直接落地的技术要点以供类似工程参考。

Abstract

Urban rail transit underground spaces are densely packed with pipelines and frequently intersect. The traditional installation method of “on-site cutting, individual positioning, and point-by-point drilling” often leads to process congestion, cumulative interface deviations, and rework in station public areas and equipment zones. In recent years, China has promoted prefabricated and modular construction techniques in subway projects, shifting the processing of pipe segments, supports, and fasteners from on-site to factory assembly, followed by rapid modular and system-based installation in confined spaces. This approach reduces the risks of wet work and secondary damage on-site while improving interface consistency and replaceability. Practices such as modular pipeline laying and integrated supports in prefabricated stations have been summarized and promoted in engineering practice and research. This article focuses on the engineering attributes of underground pipelines and key modular installation techniques, proposing actionable technical points for reference in similar projects.

关键词

装配式技术 / 轨道交通 / 地下管线 / 安装 / 应用

Key words

prefabricated technology / rail transit / underground pipelines / installation / application

参考文献

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