| The wrap-reinforced earth retaining wall is mainly by means of flexible tendons to maintain soil stability, which is with advantages of not excavation, low cost and simple in construction, and so on. The great advantages determine the wrap-reinforced earth retaining wall of the promotion of high value have wide market prospect. At present, Analysis theory and method of calculation of the wrap-reinforced earth retaining wall is still imperfect, its plastic deformation at this stage have not been effectively resolved, which is a major constraint on the wrap-reinforced earth retaining wall of the development and promotion of the application. In view of this situation, there is an urgent need for a wrap-reinforced earth retaining wall to carry out comprehensive research.Based on gathering the relevant information, detailed analysis of the wrap-reinforced earth retaining wall structure, reference to the research results at home and abroad, this paper take wraped soil thickness, reverse direction length , maximum height of the fill and ratio of the slope as the key parameters, carry out all aspects test research on wrap-reinforced earth retaining wall in the meng-zi location, and obtained the following results:A. Based on the existing norms, the calculation of the wrap-reinforced earth retaining wall can be in term of the principle of the friction;B. This paper establish a wrap-reinforced earth retaining wall analysis model for calculating, and simplify elements of the conditions and restrictions;C. Describing the current value of engineering parameter, this paper gives a calculation formula of the wraped soil thickness and reverse direction length;D. This paper gives the relations between maximum height of the fill and tensile strength, reverse direction length;E. The friction of the grid in active area are also involved in the maintenance of the wraped soil,which is different to the ordinary wall, this paper gives a calculated friction methods and formulas of the wrap-reinforced earth retaining wall;F. The ratio of the slope should not less than 1:1;G After drawing on the analysis of the tension and creep test datas, this paper has also analysised the relations among the deformation of the wall, the settlement of the wall top, the height of the wall, and gived the formula. |
