Finite Element Analysis Of H-type Slide-Resistant Pile

Expansive soil slope failure is the most common phenomenon of soil slope's deformation in expansive soil area, and its malady will do great harm to engineering. The analysis of expansive soil slope failure is one of the most difficulty problems in geotechnical engineering. This paper takes the engineering of Muma hill expansive soil landside for example, which adopted nonlinear finite element method and considered such factors as expansive force. Slope deformation process and latent slide face are analyzed by calculating the stress and strain of the slope.H-type anti-slide pile is a way to reinforce the slope of expansive soil, which can effectively restrain crack's expansion and development, as well as stop slope's deformation. h-type anti-slide pile is designed and applied in the 1970s. Since the late 1980s and the early 1990s when people realized the interaction between the foundation and the soil, the design theory and method of anti-slide pile have begun to emphasize on analyzing and studying the effect of the pile and the soil. But the study of the h-type anti-slide pile is less mature than that of the single type anti-slide pile.The finite element software ANSYS is used to analyze the reinforcement of slope of expansive soil and research the force state of sunken h-type slide-resistant pile in the process of reinforcement of slope of expansive soil, so as to get reasonable slide-resistant structure combination dimension. The numerical analysis and results show that force states of slide-resistant piles are greatly different under different dimension parameter. Therefore, different anti-slide pile dimension parameter should be adopted under slope renovations to provide references for projects and design optimization.The merit of finite element method is that it is fit for dealing with nonlinear finite element, non-homogeneous and complicated boundary problems, which can consider stratum characteristics, effects of local deformation on slope stability and the contact effect of pile and soil. The research results of this thesis have guiding significance on "this project" and provide references for other relevant projects.