Influence of grouting pressure on segment displacement and internal force when the slurry shield passes through water rich sand layer

Taking the phase III project of Xi'an Metro Line 1 as the research background, the real construction process is simulated by establishing a three-dimensional finite element model, and the variation laws of segment displacement and internal force under different grouting pressure are analyzed by changing the value of grouting pressure. The results show that: with the increase of grouting pressure, the vertical displacement of completed segments increases; with the increase of grouting pressure, the internal force of the completed segment increases linearly.