Identification of Key Elements of Soil Erosion in Railway Engineering in Mountainous Areas
A method to identify key factors contributing to water and soil erosion in mountainous railway projects is proposed.Initially,the disciplines prone to causing erosion are determined.Subsequently,the interactive relation-ship between railway projects and water and soil erosion is analyzed to identify essential elements and construct an indicator system.Furthermore,a multi-layer network model to identify key elements is developed using a complex network model combined with the entropy weighting method,IGAHP(Improved Group Analytic Hierarchy Process)method,and DWNodeRank algorithm.A specific mountainous railway project is examined as a case study.The key elements for mountainous railway project include residue disposal,embankment slope protection,and drainage ditch layout.Key elements for soil and water conservation performance include large-scale temporary soil disturbance and residue disposal.Factors influencing soil and water loss encompass hydrology,surface vegetation,and sedimentation.Emphasizing these key elements in water conservation measures and engineering design is cruci-al for effectively controlling soil and water erosion and enhancing the ecological environment in mountainous railway projects.
railway engineeringsoil erosioncomplex networkskey elementsindicator system
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