Design And The Force Analysis Of The Anti-slide Pile Slope Rreatment

In mountainous and hilly areas, the landslide is common a lot of harmful adverse natural geological phenomena, it is very widely distributed in our country. Landslide has tremendous destructive power. Large-scale landslides will bury villages and towns, destroy industrial and mining, block traffic and rivers, destroy farmland and forest, cause serious losses to the national construction and people’s lives and property. Therefore, study and management of the landslide become an important issue. Over the years invested heavily in our country landslide prevention has made great achievements, is more and more application of anti-slide retaining structure.As a landslide control measures, the application of anti-slide pile is very extensive in our country. But the design and calculation theory of anti-slide pile is not perfect, there are many deficiencies shortcomings. Many of the selection of design parameters lack of reasonable basis, there is very arbitrary. Against anti-slide pile computational analysis, a commonly used formula often do not consider the interaction between the anti-slide pile with landslide, landslide thrust is only considered as a mere external force, but they are considered separately, design, Doing so does not match with the actual situation of the anti-slide pile. The finite element software can preferably simulate the interaction between the anti-slide piles Landslide. Systematically to analysis of anti-slide Pile design and calculated on the basis of relevant theories, this article is simulated the anti-slide Pile treatment project of Fu tian high school by using finite element software ANSYS.Discussed the finite element mesh size on the influence of modeling calculation, setting the anti-slide pile or not.simulation analysis of the landslide node displacement landslide stress and strain、the sliding distance of the sliding surface、distribution form of landslides thrust、the change of internal force of anti-slide pile、landslide soil shear strength parameters on the influence of the landslide thrust and the internal force of anti-slide pile. Then against the role and impact of anti-slide pile spacing, has carried on the theoretical analysis. On the basis of the soil arching between piles and soil arching the back of the pile, by formula derivation, based on the calculation of soil arching effect pile spacing, draw upper and lower limit formula, and compared with others formula. Using software ANSYS modeling and considering the pile spacing changes, analysis of soil arching between piles from formation to destruction, further demonstrate the reasonableness of the proposed formula.