The Research Of Application In Polymer Geogrids Reinforced Earth Retaining Wall

Firstly, the development history of reinforced earth is introduced. The feature of the polymer geogrid and the reinforced earth are also introduced. The damages of the polymer geogrid reinforced earth retaining wall are summarized. The current situation of reinforced earth's design theories and its calculation methods is analyzed; their characteristics and existing problems are pointed out And the necessity and feasibility of the finite element method (FEM) applied to reinforced earth, especially polymer geogrid reinforced earth construction is presented.Secondly, most functions and applications of geosynthetics all over the world are introduced, and the reinforced mechanisms of polymer geogrids are analyzed: the friction theory and the pseudo cohesion concept theory. The pseudo cohesion concept theory explains the reinforced effect in macro-analysis, and the friction theory explains the effect in micro-analysis.Thirdly, the damages and stabilities of reinforced earth retaining wall are summarized. The design and calculation of the limited equilibrium method of the polymer geogrid reinforced earth retainingwall are analyzed. A reinforced earth retaining wall is calculated in detail.Lastly, considering the structure of the reinforced earth retaining wall, a finite element modal is modeled . The modal is made of soil element, reinforcement element and contact element The reinforced earth retaining wall is calculated with the modal. The results indicate that the defaults of the limit equilibrium method can be overcome with the finite element method to some extent...