摘要
对江阴第二过江通道、济南市济泺路穿黄隧道、三阳路长江隧道、诸光路通道新建工程和南京市纬三路过江盾构隧道的内部结构形式进行调研,并计算了江阴第二过江通道中内部结构对管片受力的影响。结果表明:盾构隧道管片内部结构中,上层车道板与预制立柱的连接一般采用固端约束和铰接的方式;考虑内部结构时,相较于不考虑内部结构时管片的最大轴力和弯矩会有所增大,但管片最大位移有所减小;内部结构采用铰接和固端约束时,其最大内力及位移的差别不大,采用铰接方式进行连接时管片内力稍大。
With development of shield tunnel construction technology,considering segment lining of internal structure is of great significance for enriching the use function of cross-sections,the structural forms is more and more often used in large cross-section shield tunnels.For the above,the internal structure of Jiangyin second river-crossing channel,the Yellow River Tunnel on Jilelu Road in Jinan City,the Yangtze River Tunnel on Sanyang Road,the Zhuguang Road Channel and the the Nanjing Weisan Road River-crossing Tunnel were investigated and analyzed,and the internal structure used in Jiangyin second river-crossing channel are taken as example to calculate the influence of the internal structure on force of the segment lining.The results show that in the internal structure of segment lining,fixed end restraint and hinge are generally adopted for the connection between the upper Lane slab and the prefabricated column;when considering the internal structure,maximum axial force and bending moment of the segment lining will increase compared with that without considering the internal structure,but the maximum displacement of segment lining will reduce,the difference in the maximum internal force and displacement is small when fixed end restraint or hinge are adopted,and the internal force of the segment lining is slightly greater when the hinging is adopted for connection.
作者
崔佳
张力
郭文琦
Cui Jia;Zhang Li;Guo Wen-qi
出处
《建筑技术开发》
2021年第15期96-98,共3页
Building Technology Development
关键词
盾构隧道
内部结构
力学性能
连接方式
shield tunnel
internal structure
mechanical properties
connection method
