Scheme Study on the Yellow River Bridge Location of Baotou to Ordos High-speed Railway Based on AHP
In order to determine the reasonable bridge location of the Yellow River of the Baotou-Ordos High-speed Railway,taking into account the existing bridge situation,river hydrology,railway junction connect,planning and environmental protection and other factors,five bridge location schemes were proposed,including Nanhaizi,Huajiangyingzi,parallel G210 Highway Bridge,Xiaobaihe,and parallel Baotou-Xi'an Railway Bridge.Firstly,qualitative analysis was used to compare and analyze different perspectives such as line length,investment,bridge spacing,river channels,and environmental impact;Then,using the Analytic Hierarchy Process(AHP)method for quantitative analysis,different weight values and scores were assigned to each influencing factor,and the total scores of the five bridge site schemes were calculated by weighting(89 points,82 points,83 points,79 points,and 64 points).The calculation result of the Nanhai Bridge site scheme has the highest score and is basically consistent with the qualitative analysis conclusion,so it is recommended.The research results indicate that the combination of traditional qualitative analysis and quantitative weight analysis methods avoids the subjective nature of qualitative analysis,and can objectively evaluate the advantages and disadvantages of each plan.
Baotou-Ordos High-speed Railwaybridge location of the Yellow Riverriver hydrologyanalytical hierarchy processcomprehensive comparison and selection