Study On Method Of Quality Evaluation For Slope Eco-engineering

Based on the eco-engineering mechanism and ecology theory, a evaluation system and evaluation model of the slope eco-engineering quality are developed in this dissertation, from the related evaluation principles and evaluation methods. It is aimed to evaluate the quality of slope eco-engineering scientifically and reasonably, and to provide a efficient mean and technical support for inspecting and evaluating slope eco-engineering.Firstly, it analyze the related theory of slope eco-engineering:the mechanism of vegetation maintaining slope stability protection, ecology theory, soil science theory, landscape aesthetics theory and sustainable development theory. On the base of summarizing related evaluation principles and evaluation methods, the weighing of evaluation index is introduced. Meanwhile, the quality of slope eco-engineering is evaluated, through analytic hierarchy process and composite indicator analytic process respectively.Secondly, through taking mechanical effects of roots, hydrological effects of branch leaves, ecological effects, landscape effects and construction of situation into comprehensive consideration, the matrix of judgment is constructed, obtained the weighing of evaluation index, and established the evaluation indicator system. The evaluation model is established through the composite indicator analytic process and the construction quality grade is obtained through the ranking table. And then, the effect of slope protection of eco-engineering is obtained accordingly.Then, the established model is applied to the two eco-engineering projects at Wudang district administrative center, Guiyang city and DK535+850～955 of Zhan-Kun railway. In the two projects, the Evaluation results and the effect of slope protection of eco-engineering are obtained, which has identified the reasonableness of the evaluation model.In order to achieve superior grade of the quality of the project level,6 key indicators are selected from the obtained weighing of evaluation index. They have a major impact on the evaluation results. Finally, it guides the design and construction of eco-engineering, by taking hydraulic sprinkle and three-dimension vegetative net as an example.