Impact Analysis of Deep Buried Pipeline Construction on Adjacent Subway by Considering Risk Assessment:Taking Yuzhu Road in Longquanyi District as an Example
With the intensive development of urban transportation network,the mutual influence between new pipeline projects and existing subway lines has become more and more prominent.Taking the pipeline laying project of Yuzhu Road in Longquanyi District as an example,through risk assessment and numerical simulation,the response of the subway tunnel structure simulation is simulated after excavation and unloading,and then the influence rules of the displacement,stress distribution and stability of the subway tunnel after pipeline excavation and unloading are revealed.The results show that the pipeline excavation has a significant but controllable impact on the adjacent subway facilities,including the local ground settlement,increased tunnel axial and transverse displacement,and the re-distribution of internal forces in the structure.Based on the research results,targeted engineering measures and suggestions are put forward to reduce the impact of pipeline excavation on the safety and stability of adjacent subway lines.
MIDAS numerical simulationrisk assessmentpipeline excavationground settlementsafety and stability of subway
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