The real difficulty of precast construction lies not in the factory packaging of subway mechanical and electrical pipelines
The installation of mechanical and electrical equipment behind subway stations is a long-term process that determines quality on site.
The arrangement of pipelines, installation of supports, and welding of welds are highly dependent on the experience of workers and site conditions.
The approach of Qingdao Metro Line 2 Phase II provides a systematic alternative solution: integrating more than ten sets of specialized systems such as ventilation, water supply and drainage, strong and weak electricity pipelines into a modular component in advance in the factory, and transporting them to the site for overall hoisting.
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