Comparison And Application Of Slope Protection Types In Large-scale River Regulation Projects

The concept of "ecological slope protection" is the extension of the concept of"sustainable development" in the field of ecological water protection.There are many types of ecological slope protection,which are widely used in the practical construction of river regulation project and water environment improvement project.According to the actual characteristics and needs of the project,using the comprehensive evaluation method of large channel improvement project of ecological slope protection type to compare and choose the right type of slope protection,combining engineering measures and the natural environment and landscape,for the protection of river ecosystem,improve the service function of rivers and comprehensive benefit is of great significance.Based on the construction requirements and engineering parameters of standard Ⅶecological slope protection in the extension dredging project of Xinmeng River,the ecological slope protection types suitable for the construction of Standard Ⅶ ecological slope protection in Xinmeng River are compared and selected,and the application of ecological slope protection in the project is analyzed.The research results of this paper are as follows:（1）The types of river ecological slope protection are summarized and analyzed,and the ecological slope protection is divided into pure vegetation type,vegetation-combined engineering type and engineering ecological comprehensive type.The advantages and disadvantages of various ecological slope protection and their application are analyzed to explore their applicability in river management project（2）According to the principles of comprehensive comparison index selection and index system establishment of slope protection type,19 indexes such as flood control,drainage and project cost were selected from four aspects of structural characteristics,construction technology,project cost and ecological landscape,and the comprehensive comparison and selection evaluation index system of ecological slope protection type of large-scale river renovation project was established.The evaluation method and standard of comprehensive comparison and selection index of slope protection type are established.（3）On the basis of analyzing and comparing the advantages and disadvantages of various analysis methods,the comprehensive evaluation index method and grey relational degree method are selected to establish the comprehensive comparison and selection method of ecological slope protection type of large-scale river renovation project,and the index weight weighting method based on analytic hierarchy process is established.（4）According to the engineering parameters of river construction Ⅶ of Xinmeng River extension dredging project,the comprehensive evaluation model of ecological slope protection for large-scale river regulation project was established.The indexes and weights were measured and calculated,and Ecological concrete slope protection was selected by comprehensive comparison Slope protection was applied to Xinmeng River Ⅶ standard.The application of selected slope protection in engineering is analyzed from four aspects of construction technology,structural stability,project cost and ecological landscape,and the application effect is good.In this paper,the comprehensive comparison method of ecological slope protection type of large-scale river regulation project has been successfully applied in the construction of Standard Ⅶ of Xinmeng River extension dredging project.The method can provide certain theoretical basis and technical reference for comparison and selection of slope protection type of similar river engineering.