Numericalanalysis Of Dynamic Response Of Anti-slide Pile Slope

Slope failure has brought great danger to the building safety, people’s lives and property, the study of slope instability mechanism, prevention and control measures to improve the stability of the slope has become an important research content in the field of geotechnical engineering. Earthquake is one of the main factors which can induce slope instability, it is necessary to study the mechanism and law of earthquake landslide in order to avoid the harm of earthquake landslide to the greatest extent. Anti- slide pile has been widely used in practice because of its own characteristics.. This paper mainly based on soil slope of the centrifuge test results, the numerical analysis technology, to explore the soil slope and anti-slide pile system dynamic instability mechanism,structure design optimization method, and focuses on the analysis of the anti-slide pile in the treatment of the slope of the feasibility and practicability. The main research contents of this paper are as follows:(1) A brief introduction to geotechnical centrifuge shaking table test. This paper introduces the test technology of the geotechnical centrifuge shaking table test, and then describes the basic situation of the equipment used in the test, and finally introduces the test model and the seismic wave input and so on.(2) The correct application of the viscous-spring artificial boundary in the finite element software is introduced, and the accuracy of the artificial boundary is verified by the numerical example of a half space.(3) The finite element numerical analysis model of the model test is established,and the reliability of the finite element numerical model is verified by comparing the numerical results with the experimental results.(4) Combine with the numerical analysis of the example, finding out the law of the seismic design of anti-slide pile and providing a reference for the seismic design.Anti-slide pile in slope stability control engineering practice has great application,but due to the complexity of slope dynamic instability mechanism, anti-slide pile design based on static analysis, anti-slide pile dynamic design technology is far behind in engineering practice, it is also why anti-slide pile dynamic stability often occurs in one of the root causes, so in my paper, studying the dynamic effects of anti-slide pile in slope system instability process has important engineering significance. The results of this paper provide a good theoretical guidance for the seismic design of anti-slide pile system.