Abstract
Combining the project practice of deep foundation pit excavation under railway trestle in coastal soft clay region, numerical calculation methods are used to analyse the excavation impact on the structural dynamic property and the deformation of the operating railway trestle over it. And monitoring data of the foundation pit and railway trestle are statistically analysized. Based on the analysis above, protection and control countermeasures of operating railway trestles over deep excavation are presented, which could be reference for design and construction of railway stations and foundation pit engineering.
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