About the author:

Qingdao Municipal Public Engineering Quality and Safety Supervision Station, Qingdao,Shandong 266000, China

Abstract:

Taking Jingdai Station of Qingdao Subway Line 7 as the engineering background, research onkey technologies of the arch type assembly station is carried out. This paper proposes assemblyconstruction technology and quality control methods for shallow buried subway stations from the aspects ofstructural design, component connection, node waterproofing and construction technology. The structuralform and block method of the closed cavity thin,walled component of the main structure were studied, anda three,dimensional mortise and tenon joint + prestressed reinforcement composite connection method,node joint design,waterproof and structural mechanical intelligent assembly construction technologywereproposed. The quality control points during the construction process were discussed. The rationality andfeasibility of prefabricated design, mechanical lifting, and assembly equipment were analyzed throughengineering applications, and the effectiveness of relevant technologies and quality control measures wasverified. The assembly and construction technology of the arch style subway station can achieve “zeroleakage” of the main structure, improve the construction quality and efficiency of the subway station’ smain structure.