Study On Numerical Simulation Analysis Of Pile-anchored And Soil Nailed-wall In Deep Excavation

When it talks about the building foundation of urban construction projects,it is necessary to ensure the security and stability of the foundation,and it also need to ensure it does not have the frustrating effect to the environment.Traditional strength-based control design methods have been gradually replaced by deformation control theory.Because of the influence of the underground pipeline which have a wide distribution around the project as well as the limitation about working surface,Pile-Anchor support system is often used in engineering.In view of the features of deep foundation, this article summarizes the impact when the supproting piles added supports,and describes the current design methods and theories on Pile-Anchor support system.Foundation pit is a spatial structure with the length,width and depth.In the general design and research,it is often simplified as a two--dimensional plane strain analysis of the issue.However, it is not a complete reflection of the found ation spatial properties as well as the size effect of space characters.Therefore,it is necessary to analyses with three-dimensional method.In this paper, finite element analysis software PLAXIS considering soil and supporting structure interaction established finite element model of excavation ,displacement of the pile, the pile anchor force distribution, the entire foundation of the settlement, the soil pit at the bottom of the uplift, the response of soil and piles during excavation were analyzed and to explore the pile spacing, pile implantation depth, anchor...