Influence of Shield Tunnel Construction on Settlement Deformation of High Railway Foundation
In order to ensure the construction safety of high railway foundation project,this paper uses numerical simulation to simulate and an-alyze the influence of shield tunnel construction parameters,the pressure of the face,the grouting pressure and the grouting material modulus on the settlement of high railway foundation.The results show that the settlement of U-shaped groove increases first and then decreases with the increase of transverse distance,and there are two significant peak points in the whole curve range.With the increase of longitudinal distance,the longitudinal surface settlement decreases first and then stabilizes and then increases.With the increase of palm surface pressure,grouting pressure and grouting material modulus,the settlement amount of U-shaped groove decreases continuously,and the longitudinal surface settle-ment amount decreases continuously.
High railway baseShield tunnelU-shaped grooveLand surface settlement
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