大直径地铁盾构隧道全预制中隔墙顶部节点同步拼装
杜亚南1朱元昌2葛照国1唐泽人2曲春雨1柳献2
Synchronous Assembly of Fully Prefabricated Central Partition Wall Top Joints in Large-diameter Metro Shield Tunnels
DU Yanan1ZHU Yuanchang2GE Zhaoguo1TANG Zeren2QU Chunyu1LIU Xian2
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作者信息:1.中铁十四局集团大盾构工程有限公司， 211800， 南京；
2.同济大学土木工程学院， 200092， 上海
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Affiliation:1.China Railway 14th Bureau Group Shield Engineering Co., Ltd., 211800, China;
2.College of Civil Engineering, Tongji University, 200092, 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.20231320
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中图分类号/CLCN:U455.91;U455.3+9
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栏目/Col:土建工程
摘要:
［目的］为充分发挥预制结构的优势，实现全预制中隔墙顶部节点与中隔墙主体的同步施工，对全预制中隔墙顶部节点的同步拼装进行了研究。［方法］依托上海市市域机场联络线工程的全预制中隔墙构件，详细阐述了预制中隔墙顶部节点的构造。根据其构造特点，利用中隔墙主体拼装台车上部间隙，对中隔墙顶部节点同步拼装设备的构造进行了详细分析，并对同步拼装设备各部分展开了详细介绍。随后,根据所研发设备特点制定了配套施工流程，并将研发设备按制定施工流程进行了实践。［结果及结论］所研发的同步拼装设备既能保证顶部连接件与中隔墙主体同步施工，还能控制连接件沿隧道纵向和竖直方向的运动。所制定的施工流程主要包括6个主要步骤，工序简便。现场监测结果表明，同步施工的顶部节点质量能满足拼装要求，所研发设备和制定的施工流程能有效实现中隔墙顶部节点与中隔墙主体的同步拼装。
Abstracts:
［Objective］ To fully leverage the advantages of prefabricated structures and realize the synchronous construction of the top joints and main body of fully prefabricated CP (central partition) walls, a study is conducted on the synchronous assembly of the top joints of such walls. ［Method］ Based on the fully prefabricated CP wall components used in Shanghai Suburban Railway Airport Link Line project, the structure of the prefabricated CP wall top joints is described in detail. According to its structural characteristics, the upper clearance of CP wall body assembly trolley is utilized to analyze the design of synchronous assembly equipment for CP wall top joints in-depth. Each equipment component is elaborately introduced. A corresponding construction process is then developed based on the equipment features, and the developed equipment is applied in practice following the established procedure. ［Result & Conclusion］ The developed synchronous assembly equipment ensures simultaneous construction of the top joints and the main body of CP wall, while also enabling controlled movement of the joints along both the longitudinal and vertical directions of the tunnel. The construction process consists of six main steps and is operationally straightforward. Field monitoring results show that the quality of the synchronously assembled top joints meets assembly requirements, and the developed equipment and process can effectively achieve the synchronous installation of the CP wall top joints with the CP wall main body.
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