摘要
文中以实际工程中下穿铁路的隧道施工为例,采用有限元软件分布模拟分析隧道施工的全过程,并对施工过程中铁路变形进行了分析,指出了隧道施工对上部铁路结构的影响并给出相关施工建议。结果表明,文中建模方法能够准确模拟下穿铁路隧道施工过程,且本工况中隧道施工对铁路结构影响较小,为类似工程施工方案确定提供了参考。
Tunnel is a necessary engineering structure in underground engineering construction. Because the tunnel destroys the integrity of the original underground foundation, it will have an impact on the surface structure. Taking the tunnel construction under the railway in the actual project as an example, this paper uses the finite element software to simulate and analyze the whole process of tunnel construction,analyzes the railway deformation in the construction process, points out the impact of tunnel construction on the upper railway structure, and gives relevant construction suggestions. The results show that the modeling method in this paper can accurately simulate the construction process of Underpass railway tunnel, and the tunnel construction has little impact on railway structure in this working condition, which provides a reference for the determination of construction scheme of similar projects.
作者
解超
史绪鑫
Xie Chao;Shi Xuxin(Beijing Urban Construction Design and Development Co.Ltd.,Beijing 100037)
出处
《江西建材》
2022年第6期273-274,278,共3页
Jiangxi Building Materials
关键词
隧道
数值模拟
有限元
变形分析
Tunnel
Numerical simulation
Finite element method
Deformation analysis