Research on slope support control technology for deep foundation pit excavation in clay soil

In order to study the impact of the foundation pit support scheme design on the stability of the foundation pit, this paper takes the deep foundation pit excavation project of the Wohe Mengcheng hub construction project as an example, conducts seepage stress coupling analysis through the three-dimensional finite element software ABAQUS, and establishes different three-dimensional finite element models of foundation pit excavation for slope support scheme. Based on the simulation of the deformation rules of foundation pit construction during foundation pit excavation and dewatering, the article analyses the displacement, deformation and water pumping volume at the bottom of the foundation pit, determines the corresponding anti-seepage scheme, and provides a reliable support scheme for the project.