基于LCA的公路建设碳排放核算及关键环节识别研究

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文章编号：1674-6139（2025）08-0045-06

中图分类号：X32文献标志码：B

Carbon Emission Accounting and Key Link Identification for Highway Construction based on LCA method

LiYuanyuan1，Lu Chunying²，Gao Shuohan²，WangXinjun²，Xu Shilei1 （1.Tianjin Highway Development Service Center，Tianjin 3OO170，China; 2.China Academy of Transportation Science，Beijing 1Oo029，China）

Abstract：Topromotethegreenandlow-carbondevelopmentofthehighwayindustry，thisarticleestablishesacarboneiion accountingmodelforhghwayonstructionbasedonthelifecyleassessmentmethod，andselectsatypicalhighwayprojectinNorth China to carry out carbon emission accounting.Research shows that the total carbon emissions of thisproject are 1.77×106tCO2e ， with the bridge and culvert project having the highest carbon emissions （9.36×105tCO2e ）and the highest carbon emission intensity （5.85×104tCO2e/km） .From the perspective of the project construction process，the material production stage is the main source of carbon emissions，accounting for 92.1% .Traceability analysis shows that there are significant differences in carbon emission key materials andmachineryamongdiferentunitprojectsandtargetedcontrolmeasuresshouldbeaken.Thisarticledeeplyanalyzstheeylinksof carbonemisionsintheprocessofhghayonstructionproposesectiveeergsavingndcarboneductionmeasuresndproides scientific basis and theoretical support for low-carbon highway construction.

Keywords：highayconstruction；carbonemissonaccounting；lifecycleassessment；carbonemissioncharacteristics；keylinks

前言

公路基础设施作为现代交通体系的重要组成部分，其碳排放对全球气候变化产生了深远影响[1]随着全球气候变化加剧以及国际社会对减排目标的共同承诺，世界各国纷纷加强对公路基础设施领域减碳技术的研究与应用。（剩余5396字）