摘要
浅埋隧道浇筑二衬时,对初衬临时支撑的压力较大,需要对隧道临时支撑结构进行设计。本文在经验的基础上,应用理论计算,结合PLAXIS数值计算对该结构进行计算分析。结果表明:该方案的稳定性、强度、抗剪、挠度等均能满足规范要求;二衬施加后,竖向支撑轴力增加较大,弯矩、剪力和侧向位移变化较小,可为类似工程的设计、施工提供参考。
When the secondary lining is poured in shallow tunnel,the pressure on the temporary support of the primary lining is larger,so it is necessary to design the temporary support structure of the tunnel.On the basis of experience,theoretical calculation and PLAXIS numerical calculation are used to analyze the structure.The results show that:the stability,strength,shear resistance and deflection of the scheme can meet the requirements of the specification.After the secondary lining is applied,the axial force of the vertical support increases greatly,while the bending moment,shear force and lateral displacement change little,which can provide reference for the design and construction of similar projects.
作者
贾兴明
来高峰
彭琦
寿凌超
王立峰
Jia Xingming;Lai Gaofeng;Peng Qi;Shou Lingchao;Wang Lifeng(Hangzhou Xiaoshan Urban Construction Investment Group Co.,Ltd.,Hangzhou 311200,China;Hangzhou Xiaoshan Urban Infrastructure Construction Co.,Ltd.,Hangzhou 311200,China;Zhejiang Mingsui Technology Co.,Ltd.,Hangzhou 311400,China;Zhejiang University of Science and Technology,Hangzhou 310023,China)
出处
《科技通报》
2023年第12期67-71,共5页
Bulletin of Science and Technology
关键词
衬砌
支撑设计
数值模拟
lining
support design
numerical simulation