矩形通道顶管施工对邻近既有地铁区间隧道的影响

Influence of Pipe Jacking Construction in Rectangular Channel on Adjacent Existing Subway Tunnel

以实际工程为例,基于三维有限元数值模拟,通过顶管施工过程精细化模拟,分析了顶管施工过程对邻近既有地铁盾构区间隧道受力变形的影响,并基于既有地铁隧道结构保护要求,提出了相应的加固措施及施工注意事项,以期为类似工程提供借鉴。

Taking the practical engineering as an example, based on three-dimensional finite element numerical simulation, the paper analyses the influence of pipe jacking construction nearby existing subway shield tunnel mechanical deformation through the refined simulation of pipe jacking construction process. And based on the structural protection requirements of existing subway tunnel structure, the paper puts forward the corresponding reinforcement measures and construction points for attention, hoping to provide reference for similar projects.