Monitoring And Analysis Of The Shaking Table’s Deep Foundation Pit Support

In this paper,through the deep foundation pit of earthquake simulation shaking table in Suzhou University of Science and Technology as the research background of pit engineering example,the research and application of the deep foundation pit support technology were expounded.Through the design and comparison of support structure of the actual engineering,with the finite element analysis,to study the effect on the stress and deformation of support structure with different design parameters.The reasonable suggestions were put forward in the aspects of support design and foundation pit monitoring in the actual engineering to improve the safety,economy,rationality of the deep foundation pit support structure in this project.The main research content in this paper as follows:(1)Combining with the characteristics of the shaking table foundation and the engineering geological conditions,the suitable support structure scheme for this project is determined.Then calculating and comparing the selected scheme by using the foundation pit support design software.(2)Using the software of ABAQUS,the finite element numerical simulation of support structure schemes of different design parameters in the excavation process was achieved.By analyzing and comparing the stress and deformation characteristics of different support schemes in the excavation process,the influence of different parameters for the support structure on the deep foundation pit engineering were concluded.(3)Based on the calculation results of the foundation pit support design software and the finite element numerical simulation by ABAQUS,combined with the conclusion of the following comparative analysis,the reasonable suggestions about the support structure design and the foundation pit monitoring for this project were put forward.