The shield construction is widely used because of its strong applicability,fast construction speed,guaranteed construction quality,and other advantages.Based on the finite element model of double-line tunnel of Wuxi Metro,the influence of shield construction under the pedestrian bridge pile foundation was investigated.Three construction schemes were implemented to analyze surface settlement and pile foundation deformation with different shield conditions.Compared with the field monitoring data,the re-sults of the numerical model were discussed.It states that the surface settlement and pile foundation de-formation in scheme 1 was smallest,while those in scheme 2 was largest.The surface settlement and pile foundation deformation of scheme 3 was smaller than that of scheme 2.For similar shield tunnel engineer-ing,the findings in this paper can be used as theoretical guidance and reference.
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