| Equilibrium-weigh,unloading-board retaining wall and the tenon retaining wall can often be adopted. The change of the unloading-board position or length will inflence the safe of the structure and the economy of the section. The tenon retaining wall will improve the resisting slippery stability of structure. But at present there is no mature theory on the structure, the study of the resisting slippery and the discussion of the structure are necessary to improve the level of the structure.The reinforcement of geotextile is widely used already in the engineering of retaining walls of our country, The geotextile was begun to apply to the reinforced-soil project since the beginning the eighties last century in our country. But the study of the stress of the reinforced structure of geotextile is still behind the engineering practice.The existing study of the equilibrium-weigh retaining wall, the unloading-board retaining wall and the tenon retaining wall has been summarized in this paper. The calculation of the above-mentioned several structure pattern have been researched with a three-dimension non-linear finite element procedure, the law that different equilibrium-weigh platform width and height, unloading-board length and positions, tenon positions and depth impacted on the stress of the ground and the soil pressure has been drawn, and can be used for similar project.This paper has introduced the mechanism of the reinforced- soil; has summarized various commonly used methods that can be used for finite element analyses and processes of geotextile, and its insufficient and defect have been analysed; have drawn geotextile model and the mathematics model of the contact surface between soil and geotextile that are needed in this paper; have calculated separately two kinds of retaining wall structure whether to reinforcement or not by the procedure, according to the result of calculation, have found out the reinforcement effect of the geotextile. |
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