Finite Element Simulation Of Deep Foundation Pit Excavation And Support

As a new field, Foundation pit engineering is developing rapidly. A lot of room for improvement exist in the study of theory. Deep foundation pit engineering is a systematic engineering, because its design and construction process is complex. Related parameters of foundation pit soil obtained through experimental research. The choice of soil model is also very critical. Foundation pit design process is mainly accompaned by numerical simulation. Some model simulation are difficult for conditions using, such as the effect of boundary conditions of foundation pit and accidental loading. In addition, most of the foundation pit engineering is a temporary structure. The most reasonable design result is economic and safe. In recent years, with the development of computer. The application of finite element analysis software is more and more widely, but the results still exist deficiencies, which need related technical personnel to cooperate.Based on the introduction,the characteristics, the theoretical analysis and calculation method of foundation pit engineering. On the basis of the use of two-dimensional plane analysis method in the ANSYS software. Useing specific engineering as an example, simulating the process of excavation and supporting structure stress. Through the analysis of the finite element results with the actual measurement dates.Drawing the following conclusion: By the contrasy, while differences exist in small,Most results is satisfing; The finite element method can be used as an effective analysis method in foundation pit design; Foundation pit excavation and supporting process is a dynamic process, which needs closely monitored system, In case of engineering accidents; Bolt is irreplaceable in the process of excavation. It is very important for maintaining the stability and deformation. The bolt needs reasonable design size and strength.