Abstract: This paper presents a case history of a deep excavation project in Wuhan. The cooperative mechanism of the soldier pile- slurry wall integrated supporting structure is evaluated and the influence of the change of the section size of the force transfer plate on the soldier pile-slurry wall integrated supporting structure is discussed. The results show that the soldier pile-slurry wall combined supporting structure has significant synergistic effect, which can effectively reduce the displacement and the internal force acting on the underground structures. The change of the section size of the force transfer plate has little impact on the underground structure. On the premise of meeting the effective force transfer and the required construction spacing, the section size of the force transfer plate can be appropriately reduced to save the construction materials and costs.

Key words: Soldier Pile-Slurry Wall Integration, Supporting Structure, Numerical Simulation, Load Transfer Plate, Mechanical Property