Study on Displacement Deformation Control of Bridge Pile of Railway Tunnel Side-crossing Expressway at Close Distance
With the rapid expansion of the construction scale of China's rail transit industry,it is more and more common for railway tunnels to pass through existing buildings(structures)at close range.In the process of railway tunnel excavation,it is very important to ensure the safety and deformation control of existing buildings(structures).Based on the bridge pile foundation of the newly built No.3 tunnel in the rural area of Dawan high-speed railway,this paper uses numerical simulation to study the displacement deformation of the bridge pile caused by the railway tunnel side-crossing the highway bridge pile under the two conditions of no isolation protection measures and isolation protection measures.The results show that the horizontal displacement deformation of the bridge pile can be improved after the isolation pile protection measures are taken,and the influence of tunnel construction on the bridge pile can be reduced.
railway tunnelproximity side wearhighway bridge pilethe displacement deformation of the bridge pilenumerical simulation
NETL
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