ansys在地铁深基坑支护模拟中的应用分析word格式论文.docxVIP

AbstractBecause of the rapid development of human civilization, underground engineering and underground rail transportation has entered a rapid development time, but the safety problems of underground engineering is presented at the same time.It is in this premise,this paper used Li zheng deep foundation soft ware and ANSYS finite element soft ware in Baiyun Road Station of Kunming subway deep foundation pit engineering, and calculated the stability of foundation pit supporting system, and accent on the simulating of the process of deep foundation pit excavation.First of all, this paper starts with the review of the expansion of foundation pit engineering, introduces the status quo and calculation theory of status and the ANSYS finite element simulation software application design in deep foundation pit excavation.Secondly, introduces the basic theory of steel support system, and uses of Lizheng deep foundation pit support design software to the Baiyun Road Station of Kunming subway deep excavation of the deformation and internal force calculation, and its stability.Thirdly, starting from the constitutive model,then introduces the contact model of basic theory and ANSYS finite element to make preparations for the ANSYS simulation in next chapter.Finally, introduces the ANSYS unit and each parameter selection in this chapter first, and then uses the ANSYS finite element simulation software to simulate the excavation process of Baiyun Road subway, and records the data of different excavation stages, and researches the best thickness of retaining wall and the best stiffness of the steel brace through the simulation data, then gets the best result of the thickness of retaining wall and the best result of stiffness of the steel brace;finally, the simulation information are compared with the information which is get from the analysis of monitoring, it is found that the simulation results and monitoring results of the variation of situation is very close, and then the corr