Research On Comparison And Selection Of Green Route Selection Scheme Of Sichuan-Tibet Railway

The relevant content of the “ Mid-and-Long-Term Railway Network Planning ”describes the continuous implementation of relevant strategies in the western region.The work and strategic planning should be carried out with the “The Belt and Road Initiative”as the core content to complement and balance the railways in Tibetan areas.Construction planning with clear levels of regional layout.The environment and terrain in Tibet are very severe,which brings many difficulties and challenges to the design of railway line selection.The Sichuan-Tibet Railway is the most convenient channel between Tibet and the mainland.As the backbone of the national railway network,it is another channel from the mainland to Tibet after the Qinghai-Tibet Railway.The need for the "high starting point,high standard and high quality" construction of the Sichuan-Tibet Railway is very necessary.At the same time,this special project is of great significance to comprehensively upgrade the technical level of China’s extremely complicated and difficult mountainous railway construction and promote the upgrading of related industrial technology systems.Therefore,the special ecological value and scientific research value of the Sichuan-Tibet Railway are of great significance to the global environment.First,through the research results on the status and development of green route selection at home and abroad,based on the special geographical location of Sichuan-Tibet Railway,combined with the principles,methods and steps of green route selection,analyze the impact on the environment along the route and the measures taken.Second,according to the characteristics of the Sichuan-Tibet Railway in green route selection,combined with the principles of the index system,the indicators are screened.Finally,the optimization is based on four aspects: engineering feasibility,railway and human friendliness,economic rationality,and socio-political economic significance.Indicator system.Third,according to the relevant multi-attribute decision theory combined with the Sichuan-Tibet Railway route selection optimization method,and based on the characteristics of the index system,the fuzzy entropy weight gray correlation projection-based route optimization scheme is used.Finally,the project example of the Bomixi to Lulang section of the Sichuan-Tibet Railway is selected to carry out the actual operation of scheme comparison and selection,to check the accuracy of the established scheme,to check the feasibility of the system,and has certain practical value.