盾构隧道双层车道结构与管片不同连接形式的受力分析

随着社会经济和城市化进程的加快,建筑结构工业化程度逐渐提高,预制装配技术在城市隧道建设领域逐渐发挥出重要作用。然而如何优化结构受力体系及节点构造、满足抗震及防水要求、提高预制装配水平仍然是城市隧道预制装配技术中的关键问题。结合上海诸光路通道新建工程,分析四种上层车道板与预制管片连接方式下的管片-内部结构体系受力特征,并结合接点构造措施,对比分析四种预制车道板与管片连接方式的优缺点,为盾构隧道双层车道结构选型提供技术支持。

Mechanical Analysis on Different Connection Types of Double-deck Lane Structure and Segment in Shield Tunnel

With the acceleration of social economy and urbanization process,the industrialization degree of building structure gradually increases,and the prefabrication and assembly technique gradually plays the important role in the construction field of urban tunnel.But how to optimize the structural stress system and the panel point construction,how to meet the anti-seismic and waterproof requirements and how to improve the prefabrication and assembly level are still the key problems in the urban tunnel prefabrication technique.Combined with the newly built Shanghai Zhuguang Road Channel Project,this paper analyzes the mechanical characteristics of segment-internal structure system by four connection methods of upper lane slab and prefabricated segment.According to the measures of panel point construction,this paper compares and analyzes the advantages and disadvantages of four connection methods of prefabricated lane slab and segment,which provide the technical support for the selection of the double-deck lane structure of shield tunnel.