Research on deep foundation excavation of rail transit station under water-rich soft soil

Abstract

During the excavation of deep foundation, the deformation of surrounding structure usually occurs due to soil unloading, while in water-rich soft soil, the deformation becomes complex and diversified due to the increase of influencing factors. Therefore, the study of Influencing factors and control methods of excavation deformation should be carried out. Based on a rail transit station of Tianjin B1 Rail Line, considering the characteristics of water-rich soft soil, combining relevant monitoring data, the influence of deformation, stress and stability under various excavation stage will be analyzed, providing a guidance for similar project.