Research On Route Selection Technology Of Shanxi-Yangmang Highway

At present,the emphasis of expressway construction is gradually extending to the mountainous terrain complicated by the vastness of our country,the terrain and landforms are very different,and the conditions of mountain construction are complicated and the ecological environment is fragile,and the environmental problems such as soil erosion,ecological destruction and environmental pollution are prone to occur.This paper takes the new project of Shanxi Yangcheng-Python River Expressway as the research object,and carries on the systematic theoretical research on the highway route selection method in mountainous area.Firstly,the characteristics of terrain,geology,ground objects,distribution of mineral resources and the main environment sensitive points along the highway selection of mountainous area are analyzed.Secondly,aiming at the characteristics of Shanxi-Yang Python expressway,from the maximum use of the space resources in the corridor zone,minimize the impact on the eco-environment in the corridor of expressway,intensive use of channel resources,reasonable avoidance of nature reserves,water source protection,fully protects the integrity and primitive nature of the natural area,and realizes the coordinated development of highway and nature,has carried on systematic comparison and optimization to the possible route plan in corridor Belt,proposes the recommended scheme and the worthy comparison plan for this project.Finally,aiming at the many influential factors and very complex characteristics of the expressway route scheme of the Yangcheng-Python river in Shanxi Province,the AHP-TOPSIS evaluation model is established to quantify the various alternatives,which improves the scientific nature of highway selection and promotes the harmonious unification of the highway construction and the natural environment.Based on the Shanxi Yangcheng-Manghe expressway,this paper has applied the concept of green Highway to the highway construction in mountainous area.In the course of route selection,it is reasonable to select the alignment of the horizontal longitudinal plane,minimize the disturbance of the environment sensitive points along the line,and strive to reduce the project scale,reduce the project cost,and realize the harmonious development of expressway construction and natural ecology.