双碳经济视角下的铁路选线思考

Reflections on Railway Route Selection from the Perspective of Dual-Carbon Economy

以双碳经济视角下的铁路选线为研究目的,通过详细分析国内外铁路碳排放和选线设计方面的研究成果,深入阐述不同阶段铁路碳排放的机理和途径,指明了铁路选线在降低铁路碳排放方面的重要作用。根据政策和中国铁路发展现状,对实现碳中和的途径进行积极分析和探索。同时,对双碳目标下铁路选线设计新要求进行详细研究。针对碳约束下的铁路选线设计,提出基于减碳低碳目标的铁路选线原则,并对选线设计重点和减碳低碳目标下的技术经济比较分析进行研究并提出建议。研究表明,铁路选线设计关系到铁路建设阶段和运营阶段碳排放,应在技术经济比较中纳入碳排放的比较因素,同时应从技术标准选择、线路空间位置布设、不同构造物分布等方面做好线路方案的深化研究和技术经济分析工作。

With railway route selection as the research objective from the perspective of dual-carbon economy,this paper analyzed domestic and international research on railway carbon emissions and route design.It elaborated in depth on the mechanisms and approaches of railway carbon emissions at different stages and highlighted the important role of route selection in reducing railway carbon emis-sions.Based on policies and the current situation of railway development in China,this paper explored ways to achieve carbon neu-trality.Additionally,new requirements for railway route selection design under the dualcarbon goals were analyzed.For railway route selection design under carbon constraints,principles based on carbon reduction and low-carbon targets were proposed.The study investigated key aspects of route selection design and conducted a technical-economic comparison focused on carbon reduction and low-carbon targets,offering suggestions.The results revealed that railway route selection affects carbon emissions in both the construction and operation stages.Therefore,carbon emissions should be included in technical-economic evaluations.At the same time,in-depth research and technical-economic analyses should be conducted based on technical standards,spatial positioning of routes,and the distribution of different structures along the route.