针对地铁混凝土管片的弯曲刚度优化研究  

Research on Optimization of Bending Stiffness for Concrete Segments in Subway

作　　者：陈佳[1] CHEN Jia(The Fourth Engineering Co.,Ltd.,China Railway 18th Bureau Group,Tianjin 300222,China)

机构地区：[1]中铁十八局集团第四工程有限公司,天津300222

出　　处：《佳木斯大学学报(自然科学版)》2025年第2期111-114,共4页Journal of Jiamusi University:Natural Science Edition

摘　　要：地铁混凝土管片是地下结构的重要组成元件,直接关系到建筑的安全稳定。研究针对地铁混凝土管片的弯曲刚度进行分析。研究表明,在施加水压的情况下,最大轴向力减小,而最小轴向力增大,并且弯矩和剪力分别是模型1和2的2.34倍、2.21倍,B1中模型4,5具有非常相似的弯矩、剪力和轴向力值。B1模型3的弯矩和剪力分别是模型4的2.62倍和2.43倍,其中分算模型的最小轴力上升。可见研究方法能够对地铁混凝土管片的设计变量进行有效分析,能够为地铁隧道的安全和稳定性施工提供参考。Subway concrete segments are an important component of underground structures,directly related to the safety and stability of buildings.Analyze the bending stiffness of subway concrete segments.Research has shown that under the application of water pressure,the maximum AF decreases while the minimum AF increases,and the BM and SF are 2.34 and 2.21 times that of models 1 and 2.Models 4 and 5 in B1 have similar BM,SF and AF values.Model 3's 2.62 BM and 2.43 SF are 2.62 and 2.43 times that of Model 4,with the minimum AF increasing.It can be seen that research methods can effectively analyze the design variables of subway concrete segments,and provide reference for the safety and stability construction of subway tunnels.

关 键 词：混凝土管片 接头 水土压力 弯曲刚度 数值模拟 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]