Numerical Simulation With FEM Of The Deep Foundation Excatation

Deep Foundation is a systematic project, due to the complexity of the soil medium and timeliness, and the diversity of the support and the environment, so the use of numerical simulation of the finite element method can more fully from the space, time, reflecting a variety of factors on the supporting structure and surrounding soil stress and displacement effects.In this paper, the structure of deep excavation engineering characteristics are discussed to introduce some common types of deep foundation pit structure, different types of support for different conditions, the pile anchor structure is the most in deep foundation excavation. In the design of structural foundation, pit excavation characteristics are to be consider, and the problems of earth pressure is particularly used to be considered. Structural design of deep excavation should be considered ultimate limit state and limit state, excavation design content are proposed according to these two states.Large general-purpose finite element software ANSYS is applied in more and more extensive excavation. The method and the ANSYS finite element analysis software are describes in this article, as well as simulated excavation and support of the unit life and death, on this basis, no support under the foundation of the stability of the slope were analyzed, indicating grading of the excavation without support limitations.The overview of a deep excavation of Nanchang and the use of retaining structure so as to arrive in Nanchang deep foundation are described. the general approach and the characteristics of support in Nanchang are attained. The Li Zheng deep excavation pit software is calculated in the section of the support, the results obtained under this section of support is safe.A deep excavation with the concrete practice of excavation, the ANSYS finite element method is used to simulate to the deep foundation system supporting the stability of the structure the core and during excavation of deep soil due to pressure distribution and the retaining structure of the displacement, stress and strain in-depth content and other related research, and then, and management of deep foundation pit is calculated calculation software. The results are compared in order to illustrate the applicability and reliability of the finite element simulation.